If you’re new to programming but want a career in tech, I HIGHLY RECOMMEND applying to one of Springboard’s online coding bootcamps (use code ALEXLEE for $1,000 off): bit.ly/3HX970h
ARE YOU SERIOUS DUDE!?? HOWWW I LITERALLY GOT MY ASSIGNMENT OF MAKING TIC TAC TOE YESTERDAY AND I NEEDED HELP AND GUESSS WHAT.... YOU JUST MADE A WHOLE VIDEO ABOUT ITTTTT!!! THANK YOUUUUU
notice how he is making mistakes in middle and correcting them ,makes me realize that making little mistakes while programming is so common and normal ... it's as if he is talking to us while programming unlike some programmers who r like - " so we r gonna do this and that and tadda" , really makes me feel kinda dumb bcoz when I try to program I really do lots of small mistakes like Alex ... really very nice video .. enjoyed it ..
Don't worry about making mistakes. If people didn't do them, what would be the usage of Stackoverflow then? There is a challange for doing 100 lines of code without any mistake, pretty hard tho.
hello, i tried this code but there's an error in && playerPositions.size()+ cpuPositions.size() == 9) it says "illegal start of expression" can you help me plsss
I've got to say when I started learning Java certain things I found really tough but your channel help strengthen the areas I was weak and also gave me more passion to learn how to code. Thanks for all the lessons.
and after four hours my jdk was just a peice of shit cuz it showed 128 errors then i. decreased them to 0 and still they showed there's a syntax error and. when we check there were no red lines like it showed there was an error but at the same time showed there were none
Great explanation!! 🙌 Don't get disheartened if it takes more than 30 mins to learn . I'm a beginner. TBH it took me 6 hours and I'm proud of myself because this is my first mini project /game and i could totally understand and do it on my own .😇
Hi just pointing out a small bug: If you place a winning piece as the last move - it will still register as a Tie, since you put the last "else if" in the for loop on line 118. Put this check as a separate if statement outside the for loop and it solves it. Great video thanks for sharing
Can you please explain why this bug comes up. Because before checkWinner() we do the putPiece() function which should automatically add the last position in our list of player positions. After that, the first if condition which prints "congrats" should be satisfied. Please explain where I am going wrong with this logic. Edit : I got why the bug appears. In the if condition, we go through all the possible winning arrangements inside the winning list. Therefore, if the last position is not part of the top row, then the tie condition will be satisfied before the win condition and "Tie" will be returned, breaking out of the checkWinner() method.
Thx man I'm a newbie to the game creation part of java I just do like easy stuff for like to find the hypotenuse length or like trigonometry. This thing really triggered me when the winning piece was the last, but thx for ur fix, I can now proudly say my first successful game created was TiC tAc ToE
@@nanonssmile bro don't give up lol, just stick with it, I'll tell you something i did, i had started playing this game called kerbal space program then i found out theres a programing language just for the game exclusively and once i downloaded it, (its called kos ksp) i learned how to fly my rockets autonomously and then thats when it hit me lol, programming has become so much easier to understand now that I've learned that kerbal space programing language and could see the result of my code in real time with the rocket, once i achieved orbit with no help and just me coding out my own code after learning kos, I've been back into programming ever since and everything looks way different than it did before, because i understand now whats going on, so don't give up bro, find alternative ways to learn coding just like i did and i promise you, you will be thankful you did, btw java is so easy, its pretty much the easiest language to learn and you'll see why once you learn how to code, you'll see how java is so much more easier than people make it out to be, trust me easiest language to learn by far and i highly recommend you stick with java
line 26 of your code should be playerPos not playerPositions. I was confused for a while because I was able to take the CPU positions in game. This was good for troubleshooting though!
Shouldn't the second while loop in main be like this? Just incase user selects a position where the cpu has already gone. while(playerPositions.contains(playerPos) || cpuPositions.contains(playerPos)){ System.out.println("Position taken! Enter a correct Position"); playerPos= scan.nextInt(); }
Who knew that the game tic tac tow would be this hard lol. I just started coding juts like a month ago and beggining to undertsand arrays. Ur videos help out a ton! This video happened to be in my recommended so I clicked it. Amazing video!!! Keep up the good work! 👍
Kinda followed until about halfway through and then did this on my own. And then I modified it with the lists you added. Really cool tutorial, very easy to follow and understand!
I liked the way you took care of overlapping moves. I was trying to code on my own whenever I could and then check how you did it. The way I did it worked too, but made the code quite lengthy and a bit repetitive. It was a good experience to learn how to code more efficiently!
This is awesome. I'm a very beginner of Java and I hope that I could make it like you do in the future. I know I have to practice over and over again! Thank you 😉
As of Java 13, you can use much better looking and shorter, "enhanced" switch statements: switch (position) { case 1 -> board[0][0] = symbol; case 2 -> board[0][2] = symbol; case 3 -> board[0][4] = symbol; case 4 -> board[2][0] = symbol; case 5 -> board[2][2] = symbol; case 6 -> board[2][4] = symbol; case 7 -> board[4][0] = symbol; case 8 -> board[4][2] = symbol; case 9 -> board[4][4] = symbol; default -> {} } Mind the missing semi-colon after "default -> {}", it's mandatory.
Tic Tac Toe is funny because it doesn't make any sense and still exists as a "game". It always ends up in a draw, unless you deliberately "try" to lose (it's a simple proven fact). You can easily make an AI to never lose with just a few IF logic.
I used almost none of this but this inspired me to use what I needed too💀💀💀 let’s just say I used way to me if loops😭 (I really don’t mind because copy and paste is a king!!!)
That cut at 21:03 made me think there was some magical hotkey combination I was missing to fill in all that info lol. I had to watch back a few times to realize it was just the magic of editing.
So I'm following along with this, but for List topRow and all the others, it gives me an error saying "Type mismatch: cannot convert from List to List" did I do something wrong here?
is there really not a better way to check all the cases? so much code to do that... i have a similar program and did the same thing but its stressing me out because its so many “if” statements and im worried to put it on my resume in case its bad coding
Awesome tutorial! I went through all of it with you. Please post more! From a teaching standpoint, I suggest placing stops in your videos. Good spots would be after you describe what the next step is. (Like: Prior to making a method, give the name of the method and pause for followers to develop their own pseudo code.) This involves users, allows you to get ideas from users, and makes this more of a teaching session. Best part is you can add these breaks in post.
it says 'Exception in thread "main" java.lang.Error: Unresolved compilation problem: at TicTacToe/tictactoepack.TicTacToe.main(TicTacToe.java:4) ' every time i try to run it, any ideas?
I too got the same problem. And I figured it out myself. So what you have to do is that, after moving the switch case to new method, you have to call the printGameBoard(gameBoard) method out of the switch case method placePiece(). This worked for me. But I think he didn't say that when moved the switch to new method.
My Eclipse console puts all of the characters in one vertical line and doesn't show the cool board like yours does at 4:20 EDIT: I missed using print instead of println for that loop.
25:35 isn't it supposed to be playerPos inside of the parameters? If you do cpuPosition.contain(playerPosition) won't it check if the user has eneterd a cpu value to late? Since you added the value to the list later in the program. This would only prevent a user from picking a cpu's position a second time or am I wrong?
Next (big) step : the same game with TDD + SOLID principles + clean code + java 8 lambdas (using predicates) + thinking OOP instead of procedural + writing it in a clean architecture to isolate the domain from the infrastructure. The goal is to have code that is sufficiently readable, flexible, maintainable and protected by tests so that it does not have to be completely rewritten every time an evolution is needed. Rewrite completely a tic tac toe game is not problematic, but rewrite a big and expensive application is. Don't write legacy code ☺️
Great Videos, I love your channel. It would be great if you could make the TicTacToe game using graphics, awt, swing. It would be a great lesson on extending and using canvas. Thanks again.
I used to suck in java now you are the almighty overlord in teaching lol Please like this comment i did your login and simple GUI tutorial video. My parents are proud
Why don't call the ítems of a simple array directly for creating the gameboard, I think you can call an item of the array to print on different lines, from what I have seen seems there's no need to make different groups into the array, thanks for your answer, great video as usual 🤓
hey,Alex thanks a lot for this wonderful tutorial,btw could you help me something like,cpu working on some sort of strategy(logic) to win against human,like how it happens with chess,or even with human while playing TicTacToe, the desire to win,instead of keeping CPU's part as random ones,this'd make it more challenging doesn't it,,,what about...you making a tutorial for that one too,like kinda extension of this...Waiting for your response :')
I tried making this and I've done almost the same thing just named stuff a bit differently and for some reason, it won't work. It was working at the start but then when we started adding more complicated things it stopped working. Here's my code: //Tic Tac Toe package test; import java.util.*; public class Start { static ArrayList playerPositions = new ArrayList(); static ArrayList cpuPositions = new ArrayList(); public static void main(String[] args) { String[][] board = { {"[ ]","[ ]","[ ]"}, {"[ ]","[ ]","[ ]"}, {"[ ]","[ ]","[ ]"} }; printBoard(board); while (true) { Scanner scan = new Scanner(System.in); System.out.println("Choose position"); int pos = scan.nextInt(); while(playerPositions.contains(pos) || cpuPositions.contains(playerPositions)) { System.out.println("Position taken! Enter a valid position."); pos = scan.nextInt(); } placePiece(board,pos,"player"); String result = winner(); if(result.length()>0) { System.out.println(result); break; } Random rand = new Random(); int cpuPos = rand.nextInt(9)+1; while(playerPositions.contains(cpuPos) || cpuPositions.contains(cpuPos)) { cpuPos = rand.nextInt(9)+1; } placePiece(board,cpuPos,"cpu"); printBoard(board); result = winner(); if(result.length()>0) { System.out.println(result); break; } } } public static void printBoard(String[][] board) { for(int i=0;i < board.length; i++) { for(int k=0; k
Please make more java tutorials ,like making gui for this game and making it real life app or sth .Please do more tutorials ,we love u ,you are a great teacher!!
Hey, thanks for this! Really easy to understand. I’d like to know what shortcut did you use in the checkWinner() method at 21:04 You typed one line of code and then the other lines until cross2 were printed automatically. Kindly share the shortcut for eclipse. Thanks!
Sir I think there is a small mistake,may be i am wrong........the code will not print the "Cat" message because u have to end the cpu loop with the logic user +cpu>=9; then break,and the same logic for printing the "Cat" .Thanks for the video.
no his condition is correct. the programs checks at first the user's positions (playerPosition.contains(playerPos)) and then he checks for the cpu's positions, with the condition (cpuPosition.contains(playerPos)). there is an or statement ( || ) between both, the code here is right ;)
As soon as you mentioned CPU I got scared💀 my project just requires human interaction, and rn I’m close … It fully plays but I need it to know when I won 😅💀
@@ZyhruAlex helped me refresh and understand basic concepts up to OOP. As far as what I've learned since I posed a year ago, well I figured out everything I needed to make my 2d multiplayer games ...the part I edited out.
You should make a C++ tutorial. I like your teaching style compared to some other channels where they go over important concepts too quickly and speak too fast sometimes.
My first game was a text based game, my only issue is how do I pull of an if else statement by using characters of Y and N, I am always confused by it and probably have poor eyesight since idk what's making my code say stuff about missing if statement eventhough I literally just wrote the damn thing
Hey thanks very much for the info, just had to do a TicTacToe assignment for my AI class, this help me find some errors in my code. But I was also hoping you would go over how to install the A.I code for the game because that's is the biggest thing I am stuck on
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If you’re new to programming but want a career in tech, I HIGHLY RECOMMEND applying to one of Springboard’s online coding bootcamps (use code ALEXLEE for $1,000 off): bit.ly/3HX970h
drive.google.com/drive/folders/1PwkFRjycQ0H2duh0iOZ52W-GxTHcbmmO?usp=sharing
ARE YOU SERIOUS DUDE!??
HOWWW
I LITERALLY GOT MY ASSIGNMENT OF MAKING TIC TAC TOE YESTERDAY AND I NEEDED HELP AND GUESSS WHAT....
YOU JUST MADE A WHOLE VIDEO ABOUT ITTTTT!!!
THANK YOUUUUU
what year are you in?
@@onlyios9077 2008
Why?
@@chrysilius0 I'm In CS and never got such an assignement
@@onlyios9077 I'm actually doing java course
He did it after I submitted mine 😭😭
notice how he is making mistakes in middle and correcting them ,makes me realize that making little
mistakes while programming is so common and normal ... it's as if he is talking to us while programming unlike some programmers
who r like - " so we r gonna do this and that and tadda" , really makes me feel kinda dumb bcoz when
I try to program I really do lots of small mistakes like Alex ... really very nice video .. enjoyed it ..
Yeah I think small mistakes are very common
Don't worry about making mistakes. If people didn't do them, what would be the usage of Stackoverflow then? There is a challange for doing 100 lines of code without any mistake, pretty hard tho.
hes not telling you we here to go to make the game
th-cam.com/video/eeIbIJR0HqQ/w-d-xo.html
Agile development best route! Make mistakes, debug, get feedback, and build a better application
Code after fixing some bugs:-
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import java.util.Random;
import java.util.Scanner;
public class TicTacToe {
static ArrayList playerPositions = new ArrayList();
static ArrayList cpuPositions = new ArrayList();
public static void main(String[] args) {
char[][] gameBoard = { { ' ', '|', ' ', '|', ' ' }, { '-', '+', '-', '+', '-' }, { ' ', '|', ' ', '|', ' ' },
{ '-', '+', '-', '+', '-' }, { ' ', '|', ' ', '|', ' ' }, };
printGameBoard(gameBoard);
while (true) {
//**********************PLAYER*****************************************
Scanner input = new Scanner(System.in);
System.out.println("Enter your position from 1-9 :");
int playerPos = input.nextInt();// Entering your position
while (playerPositions.contains(playerPos) || cpuPositions.contains(playerPos)) {
System.out.println("this place has been taken please Enter different position :");
playerPos = input.nextInt(); // Rentering your position
}
playerPositions.add(playerPos);
placePiece(gameBoard, playerPos, "player"); // send your position to put
printGameBoard(gameBoard); // print Board after your position
System.out.println();
String result = checkWinner();
if (result.length() > 0) {
System.out.println(result);
playerPositions.clear();
cpuPositions.clear();
resetGameBoard(gameBoard);
printGameBoard(gameBoard);
continue;
}
//**********************CPU********************************************
Random rand = new Random();
int cpuPos = rand.nextInt(9) + 1;
while (playerPositions.contains(cpuPos) || cpuPositions.contains(cpuPos)) {
cpuPos = rand.nextInt(9) + 1; // Rentering cpu position
}
cpuPositions.add(cpuPos);
placePiece(gameBoard, cpuPos, "cpu");// Entering cpu position
printGameBoard(gameBoard);
System.out.println();
result = checkWinner();
if (result.length() > 0) {
System.out.println(result);
cpuPositions.clear();
playerPositions.clear();
resetGameBoard(gameBoard);
printGameBoard(gameBoard);
continue;
}
}
}
public static void printGameBoard(char[][] GBoard) {
for (char[] G : GBoard) {
for (char M : G)
System.out.print(M);
System.out.println();
}
}
public static void resetGameBoard(char[][] gameBo) {
char Symbol = ' ';
gameBo[0][0] = Symbol;
gameBo[0][2] = Symbol;
gameBo[0][4] = Symbol;
gameBo[2][0] = Symbol;
gameBo[2][2] = Symbol;
gameBo[2][4] = Symbol;
gameBo[4][0] = Symbol;
gameBo[4][2] = Symbol;
gameBo[4][4] = Symbol;
}
public static void placePiece(char[][] Gboard, int ps, String pl) {
char Symbol = ' ';
if (pl.equals("player"))
Symbol = 'X';
else if (pl.equals("cpu"))
Symbol = '0';
switch (ps) {
case 1:
Gboard[0][0] = Symbol;
break;
case 2:
Gboard[0][2] = Symbol;
break;
case 3:
Gboard[0][4] = Symbol;
break;
case 4:
Gboard[2][0] = Symbol;
break;
case 5:
Gboard[2][2] = Symbol;
break;
case 6:
Gboard[2][4] = Symbol;
break;
case 7:
Gboard[4][0] = Symbol;
break;
case 8:
Gboard[4][2] = Symbol;
break;
case 9:
Gboard[4][4] = Symbol;
break;
default:
break;
}
}
public static String checkWinner() {
List frstrow = Arrays.asList(1, 2, 3);
List scndrow = Arrays.asList(4, 5, 6);
List thrdrow = Arrays.asList(7, 8, 9);
List frstclm = Arrays.asList(1, 4, 7);
List scndclm = Arrays.asList(2, 5, 8);
List thrdclm = Arrays.asList(3, 6, 9);
List frstcross = Arrays.asList(1, 5, 9);
List scndcross = Arrays.asList(3, 5, 7);
List winning = new ArrayList();
winning.add(frstrow);// 1
winning.add(scndrow);// 2
winning.add(thrdrow);// 3
winning.add(frstclm);// 4
winning.add(scndclm);// 5
winning.add(thrdclm);// 6
winning.add(frstcross);// 7
winning.add(scndcross);// 8
int i = 1;
for (List l : winning) {
if (playerPositions.containsAll(l))
return "Congratulation you Won!";
}
for (List l : winning) {
if (cpuPositions.containsAll(l))
return "Sorry you lost this time :(";
}
for (List l : winning) {
if (!(playerPositions.containsAll(l)) && !(cpuPositions.containsAll(l))
&& playerPositions.size() + cpuPositions.size() == 9)
return "CAT!";
}
return "";
}
}
hello, i tried this code but there's an error in
&& playerPositions.size()+
cpuPositions.size() == 9)
it says "illegal start of expression"
can you help me plsss
pls help me this is my exam in programming 2
I've got to say when I started learning Java certain things I found really tough but your channel help strengthen the areas I was weak and also gave me more passion to learn how to code. Thanks for all the lessons.
@Idk I just want to comment Riley And I left it at 69.😁
Riley you have done the world a great service
the fact that I spent 1HOUR in the first 6 minutes is absolutely mad
Trust the process :)
I had the same frustrating issue too. :(
same bro
3 hours
and after four hours my jdk was just a peice of shit cuz it showed 128 errors then i. decreased them to 0 and still they showed there's a syntax error and. when we check there were no red lines like it showed there was an error but at the same time showed there were none
5:03 Cool, cool, cool. Save and run. And it still works.
I felt that
Lol
Great explanation!! 🙌
Don't get disheartened if it takes more than 30 mins to learn . I'm a beginner. TBH it took me 6 hours and I'm proud of myself because this is my first mini project /game and i could totally understand and do it on my own .😇
Hi just pointing out a small bug: If you place a winning piece as the last move - it will still register as a Tie, since you put the last "else if" in the for loop on line 118. Put this check as a separate if statement outside the for loop and it solves it. Great video thanks for sharing
Thanks, I was also thinking how to solve this bug, but you answered.
Can you please explain why this bug comes up. Because before checkWinner() we do the putPiece() function which should automatically add the last position in our list of player positions. After that, the first if condition which prints "congrats" should be satisfied. Please explain where I am going wrong with this logic.
Edit : I got why the bug appears. In the if condition, we go through all the possible winning arrangements inside the winning list. Therefore, if the last position is not part of the top row, then the tie condition will be satisfied before the win condition and "Tie" will be returned, breaking out of the checkWinner() method.
@@praneetkarna8498 Thank you for the edit now I understand also
Thx man I'm a newbie to the game creation part of java I just do like easy stuff for like to find the hypotenuse length or like trigonometry. This thing really triggered me when the winning piece was the last, but thx for ur fix, I can now proudly say my first successful game created was TiC tAc ToE
Thanks a lot.. 😊
That helped me build tictactoe in PYTHON XD
How to program tic tac toe in script languages LOL
Can you share your python code? I'm really struggling...😰
@@nanonssmile have you gotten everything under control?
@@antwarior I really tried, many times... but then I gave up😅
@@nanonssmile bro don't give up lol, just stick with it, I'll tell you something i did, i had started playing this game called kerbal space program then i found out theres a programing language just for the game exclusively and once i downloaded it, (its called kos ksp)
i learned how to fly my rockets autonomously and then thats when it hit me lol, programming has become so much easier to understand now that I've learned that kerbal space programing language and could see the result of my code in real time with the rocket, once i achieved orbit with no help and just me coding out my own code after learning kos,
I've been back into programming ever since and everything looks way different than it did before, because i understand now whats going on, so don't give up bro, find alternative ways to learn coding just like i did and i promise you, you will be thankful you did,
btw java is so easy, its pretty much the easiest language to learn and you'll see why once you learn how to code, you'll see how java is so much more easier than people make it out to be, trust me easiest language to learn by far and i highly recommend you stick with java
More short games please.
HANDS DOWN
SIMPLEST TIC TAC TOE PROGRAM + EXPLANATION.
good work bruhh
I wish I could see this in c++ but this was great!
line 26 of your code should be playerPos not playerPositions. I was confused for a while because I was able to take the CPU positions in game. This was good for troubleshooting though!
I was having that issue too. ty for fixing it im not familiar enough yet to figure it out.
Shouldn't the second while loop in main be like this? Just incase user selects a position where the cpu has already gone.
while(playerPositions.contains(playerPos) || cpuPositions.contains(playerPos)){
System.out.println("Position taken! Enter a correct Position");
playerPos= scan.nextInt();
}
Yea I figured it out myself
Thats what i thought
Thank you for this comment. I was confused about how I should have rewritten this part.
Thanks a lot man! I appreciate this a lot, very helpful. :)
Who knew that the game tic tac tow would be this hard lol. I just started coding juts like a month ago and beggining to undertsand arrays. Ur videos help out a ton! This video happened to be in my recommended so I clicked it. Amazing video!!! Keep up the good work! 👍
Kinda followed until about halfway through and then did this on my own. And then I modified it with the lists you added. Really cool tutorial, very easy to follow and understand!
I liked the way you took care of overlapping moves. I was trying to code on my own whenever I could and then check how you did it. The way I did it worked too, but made the code quite lengthy and a bit repetitive. It was a good experience to learn how to code more efficiently!
I did my first tictactoe today, but it's X vs O without CPU
Arf, you should use % and / to set the symbol instead of your switch
gameBoard[2 * ((pos - 1) / 3)][2 * ((pos - 1) % 3)]
Yea and there are other efficiency flaws in his code.
For example the winning checks and the while loop for the cpu can be improved
Dude that's ingenious!
I get an error
java: '(' expected
for line public static void String checkWinner() {. Why is this happening?
Nvm I got it I was using void while returning an empty string
Im learning java here and this is my first project :)
Someone made tic tac toe in Brianfuck
thats the stuff i like
This is awesome. I'm a very beginner of Java and I hope that I could make it like you do in the future. I know I have to practice over and over again! Thank you 😉
You taking Computer science in college ? Its easy during the first few lessons lol and then it gets I harder and I get lost.
I love your teaching style! Really easy to understand and make seem less scary to code in Java!
As of Java 13, you can use much better looking and shorter, "enhanced" switch statements:
switch (position) {
case 1 -> board[0][0] = symbol;
case 2 -> board[0][2] = symbol;
case 3 -> board[0][4] = symbol;
case 4 -> board[2][0] = symbol;
case 5 -> board[2][2] = symbol;
case 6 -> board[2][4] = symbol;
case 7 -> board[4][0] = symbol;
case 8 -> board[4][2] = symbol;
case 9 -> board[4][4] = symbol;
default -> {}
}
Mind the missing semi-colon after "default -> {}", it's mandatory.
Tic Tac Toe is funny because it doesn't make any sense and still exists as a "game". It always ends up in a draw, unless you deliberately "try" to lose (it's a simple proven fact).
You can easily make an AI to never lose with just a few IF logic.
Wow I wrote my second java project with this.......
Thanks.
First was obviously hello world
Dude thank you very much. Literally got the same project. Thank you very much!!!!
I used almost none of this but this inspired me to use what I needed too💀💀💀 let’s just say I used way to me if loops😭 (I really don’t mind because copy and paste is a king!!!)
That cut at 21:03 made me think there was some magical hotkey combination I was missing to fill in all that info lol. I had to watch back a few times to realize it was just the magic of editing.
I started to watch your java tutorial videos and now I have watched like 15 of them and ended up here. You are great at explaining things. Thanks!
Lol, love the profile picture.
So I'm following along with this, but for List topRow and all the others, it gives me an error saying "Type mismatch: cannot convert from List to List" did I do something wrong here?
is there really not a better way to check all the cases? so much code to do that... i have a similar program and did the same thing but its stressing me out because its so many “if” statements and im worried to put it on my resume in case its bad coding
There's an error showing "cannot find symbol-variable c" even though i have imported all the classes given in ur code.
Ps: I use Bluej.Please helpp!!
You might forgot declare the c variable
switch to IntelliJ IDEA ! Best for Java and is free.. also most popular and professional Java IDE
Lmao bluej has nothing to do with it u might have just forgotten to initiatialize c
What if i am winning the game in my last move. The condition (playerPosition.size() +cpuPosition.size() == 9) is always true.... How to solve this ??
add a + 1 after the 9
put that equal condition outside the for loop
I'm wanting to learn Java for Android app development, and your videos are kinda helpful for me. Thanks!
can you please provide the source code?
This tutorial is what the gang needs! Wahooooo
After watching, oomgg i think i need to practise a lot to put all the func together without error.
I guess you ar enot ussing OOP stuff ?:)))
how come mine comes out in a straight line the gameboard ?
just a guess, System.out.println with a new line char added, versus System.out.print() with no new line added
Awesome tutorial! I went through all of it with you. Please post more!
From a teaching standpoint, I suggest placing stops in your videos. Good spots would be after you describe what the next step is. (Like: Prior to making a method, give the name of the method and pause for followers to develop their own pseudo code.)
This involves users, allows you to get ideas from users, and makes this more of a teaching session. Best part is you can add these breaks in post.
Can we make a GUI on this code together ? please its will help us alot thanks
10:00... that momentttttttttttttttttt
it says 'Exception in thread "main" java.lang.Error: Unresolved compilation problem:
at TicTacToe/tictactoepack.TicTacToe.main(TicTacToe.java:4)
' every time i try to run it, any ideas?
nvm
I needed this so much. Thanks!
how could i make it to where it prints the game board before the end result?
import java.util.*;
This imports all classes that belong to the java.util.
That could cause class interferences.
Can you copy paste the code in the comments please ?
gedraag je typ normaal bro walking ick ://
Where do I start adding stuff if its player to player?
love your videos man, i was wondering. will you ever make a junit video?
I think you've could've made a nested for loop to iterate through the x and y indexes of the 2d array, instead of using a switch
keep the good work :)
thanks!
I made it in C with different logic and I think that was better than this so any body want that you can contact me
Yeaa please give me the code
It didn’t work do you mind at the end just showing all the code so people know where they went wrong
Edit: My Pieces Aren’t Placing!
Same here
I too got the same problem. And I figured it out myself.
So what you have to do is that, after moving the switch case to new method, you have to call the printGameBoard(gameBoard) method out of the switch case method placePiece(). This worked for me. But I think he didn't say that when moved the switch to new method.
You should create a website to upload the source code
i have no words to describe how grateful i'm after watching your java tutorials. YOU ARE AWESOME
Please help me i will typing else if (cpupositions. ) but size is not showing. In eclipse IDE 2020 09
but the playerposition we dident initialize it?
Thank you for helping me pass my Java class Alex and I love your intro song Kazura - My Way.
I spent 2:30 hours but it's awesome 👍
My Eclipse console puts all of the characters in one vertical line and doesn't show the cool board like yours does at 4:20
EDIT: I missed using print instead of println for that loop.
25:35 isn't it supposed to be playerPos inside of the parameters? If you do
cpuPosition.contain(playerPosition) won't it check if the user has eneterd a cpu value to late? Since you added the value to the list later in the program. This would only prevent a user from picking a cpu's position a second time or am I wrong?
Great Video! I was wondering could you cover GUI too?
suggestion.... change the white places on the origional gameBoard to the corresponding numbers to know where you are playing
Next (big) step : the same game with TDD + SOLID principles + clean code + java 8 lambdas (using predicates) + thinking OOP instead of procedural + writing it in a clean architecture to isolate the domain from the infrastructure.
The goal is to have code that is sufficiently readable, flexible, maintainable and protected by tests so that it does not have to be completely rewritten every time an evolution is needed.
Rewrite completely a tic tac toe game is not problematic, but rewrite a big and expensive application is.
Don't write legacy code ☺️
Great Videos, I love your channel. It would be great if you could make the TicTacToe game using graphics, awt, swing. It would be a great lesson on extending and using canvas. Thanks again.
This is so cool....!!!
hey i have copy your whole code but its nor working can you give me source code
Kindly send me code
Please make more such videos. You explain everything so nicely.
I used to suck in java now you are the almighty overlord in teaching lol
Please like this comment i did your login and simple GUI tutorial video. My parents are proud
Why don't call the ítems of a simple array directly for creating the gameboard, I think you can call an item of the array to print on different lines, from what I have seen seems there's no need to make different groups into the array, thanks for your answer, great video as usual 🤓
how do you fix Cannot invoke "String.length()" because "result" is null
Love you lol❤
Help full
hey,Alex thanks a lot for this wonderful tutorial,btw could you help me something like,cpu working on some sort of strategy(logic) to win against human,like how it happens with chess,or even with human while playing TicTacToe, the desire to win,instead of keeping CPU's part as random ones,this'd make it more challenging doesn't it,,,what about...you making a tutorial for that one too,like kinda extension of this...Waiting for your response :')
I tried making this and I've done almost the same thing just named stuff a bit differently and for some reason, it won't work. It was working at the start but then when we started adding more complicated things it stopped working.
Here's my code:
//Tic Tac Toe
package test;
import java.util.*;
public class Start {
static ArrayList playerPositions = new ArrayList();
static ArrayList cpuPositions = new ArrayList();
public static void main(String[] args) {
String[][] board =
{
{"[ ]","[ ]","[ ]"},
{"[ ]","[ ]","[ ]"},
{"[ ]","[ ]","[ ]"}
};
printBoard(board);
while (true)
{
Scanner scan = new Scanner(System.in);
System.out.println("Choose position");
int pos = scan.nextInt();
while(playerPositions.contains(pos) || cpuPositions.contains(playerPositions))
{
System.out.println("Position taken! Enter a valid position.");
pos = scan.nextInt();
}
placePiece(board,pos,"player");
String result = winner();
if(result.length()>0)
{
System.out.println(result);
break;
}
Random rand = new Random();
int cpuPos = rand.nextInt(9)+1;
while(playerPositions.contains(cpuPos) || cpuPositions.contains(cpuPos))
{
cpuPos = rand.nextInt(9)+1;
}
placePiece(board,cpuPos,"cpu");
printBoard(board);
result = winner();
if(result.length()>0)
{
System.out.println(result);
break;
}
}
}
public static void printBoard(String[][] board)
{
for(int i=0;i < board.length; i++)
{
for(int k=0; k
can someone PLEASE tell me at 21:04, how paste all the add list at one time?????
He stopped recording of the video this time.
Hope i don't get knocked for plagiarism for using the main bit of the code
Can you do this using a window? Maybe wven buttons?
Ye :)
Unrelated qts. But is Dave Lee ur brother?
He only has 2 sisters
There are some bugs which I am unable to fix, but you're infinitely better than me! :D
Please make more java tutorials ,like making gui for this game and making it real life app or sth .Please do more tutorials ,we love u ,you are a great teacher!!
:) Utube recommended this to me..I recommend to others. :) luv This channel..
and one doubt >_< @22:08 why do we use contains instead of containsALL?
Hey, thanks for this! Really easy to understand. I’d like to know what shortcut did you use in the checkWinner() method at 21:04 You typed one line of code and then the other lines until cross2 were printed automatically. Kindly share the shortcut for eclipse. Thanks!
no short cut. he cut that part of the video doing copy past on background .
Sir I think there is a small mistake,may be i am wrong........the code will not print the "Cat" message because u have to end the cpu loop with the logic user +cpu>=9; then break,and the same logic for printing the "Cat" .Thanks for the video.
Line : 26 cpuPosition.contains(playerPos) - This should be the correct condition.
Yeah Just found IT out too👍👍
no his condition is correct.
the programs checks at first the user's positions (playerPosition.contains(playerPos))
and then he checks for the cpu's positions, with the condition (cpuPosition.contains(playerPos)).
there is an or statement ( || ) between both, the code here is right ;)
I just made my first tic tac toe!!
As soon as you mentioned CPU I got scared💀 my project just requires human interaction, and rn I’m close … It fully plays but I need it to know when I won 😅💀
OMG This was the best tutorial I've ever seen over internet. I just love the way, he make things easy for beginner like me. Thank you so much.
@Alex Lee, nice video, thanks a lot for it. I learned massively, and I wish I had this 2 years
How much have you learned?
@@ZyhruAlex helped me refresh and understand basic concepts up to OOP. As far as what I've learned since I posed a year ago, well I figured out everything I needed to make my 2d multiplayer games ...the part I edited out.
Hey Alex, im Benjameer and im just asking if Javascript is mostly same with Java? Sorry im bad at english
my god, no dont make it 1,2,3
4,5,6
7,8,9
make it
7,8,9
4,5,6
1,2,3 like the numpad
Hi Alex 😊 thank you so much for this video 😭 lot's of love from india
You should make a C++ tutorial. I like your teaching style compared to some other channels where they go over important concepts too quickly and speak too fast sometimes.
can someone give me the source code?
My first game was a text based game, my only issue is how do I pull of an if else statement by using characters of Y and N, I am always confused by it and probably have poor eyesight since idk what's making my code say stuff about missing if statement eventhough I literally just wrote the damn thing
Hey thanks very much for the info, just had to do a TicTacToe assignment for my AI class, this help me find some errors in my code. But I was also hoping you would go over how to install the A.I code for the game because that's is the biggest thing I am stuck on