Core Java Programming Challenges #2 | Coding Challenges | Naresh IT

Core Java Programming Challenges #2 | Coding Challenges | Naresh IT
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[@SaritaSinghsarita]

public class challange2 {
public challange2() {
System.out.println("First Constructor");
}
public challange2(int i) {
this();
System.out.println("Second Constructor - " + i);
}
public challange2(int j,String k) {
this(2);
System.out.println("Third Constructor " + j +" " + k);
}
public static void main(String[] args) {
new challange2(20,"Main");
}
}
OutPut:
First Constructor
Second Constructor - 2
Third Constructor 20 Main

[@Naninaninani5209]

Mam why your using this() in program

[@saravanakumaran555]

instead of giving this kind of challenges give complete code explanation on core java that srinivas sir given for data structure and c programming
we also want mr. srinivas to give lectures on c++ and core java

[@AlphaGeekOfficial]

yes Mr, Srinivas Explanation is amazing! Please teach core java
Request from all students

[@nishantraj3869]

public class Index {
Index(){
this("abc");
System.out.println("Constructor with no argument ");
}
Index(String s){
this(5,"abc");
System.out.println("Constructor with one argument ");
}
Index(int a, String s){
System.out.println("Constructor with Two argument");
}
public static void main(String[]args)
{
Index trial = new Index();
}
}

[@My_music_dinuka]

we can't make methods without use "public static void "
This is the correct java program..
//////////////////////////////////////////////////////////////////////
public class Example{
public static void Index(){
Index("abc");
System.out.println("
");
System.out.println("Constructor with no argument
This is the Index methord 1");
}
public static void Index(String s){
Index(5,"abc");
System.out.println("
");
System.out.println("Constructor with one argument
This is the Index methord 2 with one parameter. ");
System.out.println("s :" + s);
}
public static void Index(int a, String s){
System.out.println("
");
System.out.println("Constructor with Two argument
This is the Index methord 3 with two parameters.");
System.out.println("a :" + a);
System.out.println("s :" + s);
}
public static void main(String[]args)
{
Index();
}
}
//////////////////

[@codejayam6025]

public static void main(String[] args){
Test t =new Test(10,20);
}
Test(int x,int y)
{
this.Test(x);
}
Test(int x)
{
this.Test();
}

[@SubhamKumar-wb5cj]

sir please check:
public class Challenge_2 {
public Challenge_2()
{

System.out.println("hi");
}
public Challenge_2(int x)
{
this();
System.out.println("hello");
}
public Challenge_2(int i,int j)
{
this(i);
System.out.println("bye bye");
}
}
class UseChallenge_2{
public static void main(String[] args) {
Challenge_2 obj=new Challenge_2(2,3);
}
}

[@RRRdaemon]

yes perfect 👍

[@ShivaniSharma-fp7gy]

Sir please provide code afterwards... So that we can check.

[@danyalaabid]

public class Challenge2
{
Challenge2()
{
System.out.println("Hi");
}
Challenge2(int x)
{
this();
System.out.println("Hello");
}
Challenge2(int x, int y)
{
this(5);
System.out.println("Bye");
}
public static void main(String []args){
new Challenge2(5,6);
}
}

[@jayakrishnavunnam9335]

Bro its getting error. It is saying that "this();" should be on first line.

[@arabindamohanty2190]

Thanks a lot for such a wonderful session s

[@jyotisankardas2036]

public class Main
{
public Main(){
this(10);
System.out.println("hi");
}
public Main(int x){
this(2,6);
System.out.println("hello");
}
public Main(int z,int y){
System.out.println("by");
}
public static void main(String[] args)
{
Main m=new Main();
}
}

[@Gamingrobox11]

great which company are u working brother

[@sarmadrehman3304]

class Temp {
Temp () {
this( 5) ;
System.out.println("Default");
}
Temp(int x){
this (5,10);
System.out.println("first");
}
Temp (int x, int y){
int c= x*y;
System.out.println(c);
System.out.println("second");
}
}
public class Main {
public static void main(String[] args)
{Temp T = new Temp();
}}

[@vivektiwari372]

class Test
{
Test()
{
this(5);
System.out.println("Hii");
}
Test(int x)
{
this(5,15);
System.out.println("Hello");
}
Test(int x,int y)
{
System.out.println("Bye");
}
public static void main(String args[])
{
Test t1=new Test();
}
}

[@sreedharkamera9553]

public class reversestring {

int x=10;
int y=20;
reversestring()
{

System.out.println("Default constructor");
}
reversestring(int x)
{ this();
System.out.println("single instance constrctor");
}
reversestring(int x,int y)
{
this(10);
System.out.println("Multiple instance constrctor");
}

public static void main(String[] args)
{
reversestring rev= new reversestring(10,20);
}
}

[@haidarsalami355]

very good pleas go on

[@manojpal-kb8cj]

package challenges;
public class challange_2 {
challange_2() {
System.out.println("hi");
}
challange_2(int x){
this();
System.out.println("hello");
}
challange_2(int x, int y ){
this(10);
System.out.println("bye");
}
public static void main(String[] args) {
challange_2 c2=new challange_2(10,20);
}
}

[@mdsarfarazansari3844]

Test obj=new Test();
obj.Test();
obj.Test(2);
obj.Test(2,3);

[@SaiTechSolutions]

for constructors no need to create new objects when we call them automatically execution get started :)

[@navyamudadla4184]

public class Test{


Test()
{
System.out.println("hi");

}
Test(int x)
{
System.out.println("hlo");

}
Test(int x,int y)
{
System.out.println("hieeee");
}

public static void main(String[] args) {
Test t=new Test(5,5);
Test k=new Test();
Test s=new Test(7);



}
}
This is the crct answer

[@yaswanth2332]

@@navyamudadla4184 but Srinivas sir told take only one object.bro u took 3 objects

[@manojpal-kb8cj]

this keyward is refrence variable that refer to the ✔✔✔current object✔✔✔ not a present object

[@pankajaklade9963]

class A
{
A()
{
System.out.println("this is default contsructor");
}
A(int x,int y)
{
this();
System.out.println("this is two int constructor : "+x+" "+y);
}
A(String x,double y)
{
this(10,20);
System.out.println("this is string and float type constrctor : "+x+" "+y);
}
}
public class Test {
public static void main(String[] args) {

A a = new A("pankaj",10.25);
}
}

[@arpithaarpithak1699]

Sir what is the difference between Java and core java

[@sandeepjoshivlogs5227]

Nothing, two types of java..
1.core java. Which is basic java.
2. Advance java. like servlet, spring, hibernate etc etc...

[@prasadamara7633]

Java is derived by 3 types jse jee jme 1.jse means core java, we develop only standalone applications 2.jee means adv java ,we develop web applications and online applications. 3.jme we develop mobile applications and games

[@snletwang6994]

public class test {
test(){
this(1);
System.out.println("Hi");
}
test(int a){
this(1,2);
System.out.println("hello");
}test(int a, int b){

System.out.println("Bye");
}
public static void main(String[] args) {
// TODO Auto-generated method stub
test t = new test();
}

[@kaviapnasuno7011]

package p1;
public class A {

A(){
System.out.println("Hi");
}
A(int a){
this();
System.out.println("Hello");
}
A(int b , String str){
this(20);
System.out.println("bye");

}
public static void main(String[] args) {
A a1=new A(10,"santosh");
}

}

[@poonampatel-cn3ge]

class Challang2{
public Challang2(){
System.out.println("hi");
}
public Challang2(int a){
this();
System.out.println("welcom");
}
public Challang2(int a,int b){
this(3);
int c=a+b;
System.out.println("hi"+c);
}
public static void main(String [] ar){
new Challang2(4,7);
}
}

[@psnvenkat2284]

package CodeChallangenaresh;
public class ConstructorChaininig {
ConstructorChaininig() {
System.out.println("1");
}
ConstructorChaininig(int x) {
this();
System.out.println("2");
}
ConstructorChaininig(int x, int y) {
this(x);
System.out.println("3");
}
public static void main(String[] args) {
ConstructorChaininig obj = new ConstructorChaininig(2,3);

}
}

[@shilpar2298]

public class SameClass {

SameClass()
{
System.out.println("hello");
}
SameClass(int arg)
{
this();
System.out.println("hi");
}
SameClass(int arg1, int arg2)
{
this(29);
System.out.println("Bye");
}
public static void main(String[] args) {
SameClass s= new SameClass(10,20);
}
}

[@sarthaksinghnegi1494]

class A
{
A()
{
this(10);
}
A(int a)
{
System.out.println("Completed");
}
public static void main(String...s)
{
new A();
}
}

[@raviraj1644]

public class Test7 {
Test7() {
this(10);
System.out.println("0 Param construtor is called");
}
Test7(int x) {
this(12, 15);
System.out.println("1 int Param construtor is called");
}
Test7(int x, int y) {
System.out.println("2 Param construtor is called");
}
public static void main(String[] args) {
Test7 test = new Test7();
}
}

[@RahulGupta-xc4fg]

Public class xyz()
{
xyz() {
S. O. P("No parameter constructor is called") ;
Test(10) :
}
Xyz(int a)
{
Sysout("constructor with one parameter is called") ;
Test(65,78)
}
Xyz(int a, int b)
{ Sysout("constructor with two parameter is called") ;
}
P. S. V. M(String arga[])
{
new xyz() ;
}
}
// Now all the three constructor will get called at once

[@dineshseven3239]

public class Challenge2 {

Challenge2(){
System.out.println("Hi");
}

Challenge2(int a){
this();
System.out.println("Hello ");
}


Challenge2(int b, int c){
this(b);
System.out.println("Bye");
}

public static void main(String[] args) {
/* Constructor chaining
QUESTION: Connect all the three constructors in Object creation
*/

Challenge2 c2 = new Challenge2(10,20);
}
}

[@samahmahdi5511]

class Challenge2{
Challenge2(){
System.out.println("Default constructor");
}
Challenge2(String s){
this();
System.out.println("One argument constructor with parameter "+s);
}
Challenge2(String s1 , String s2){
this(s1);
System.out.println("Two argument constructor with parameter "+s1+ " and "+s2);
}
public static void main(String args[]){
Challenge2 obj = new Challenge2("Hello", "World");
}
}

[@karangorai4401]

public class Challenges2 {
Challenges2(){
System.out.println("Hi");
}
Challenges2(int x){
this();
System.out.println("Hello");
}
Challenges2(int x,int y){
this(1);
System.out.println("Bye");
}
public static void main(String[] args) {
Challenges2 ch = new Challenges2(3,4);
}
}

[@srinivasvenkata9069]

class ConstructorTest
{
ConstructorTest(){
this(1);
System.out.println("Hi");
}
ConstructorTest(int x){
this(1,2);
System.out.println("Hello");
}
ConstructorTest(int x,int y){

System.out.println("Bye");
}
public static void main(String[] args)
{
ConstructorTest t=new ConstructorTest();
//System.out.println("Hello World!");
}
}

[@RahulKumar-zr5gu]

what if , i cant code please also give codings at last or in another video or in comments... please

[@RajuChippa]

public class PrintEx {
public PrintEx() {
this(10);
}
public PrintEx(int a) {
this(10,20);
}
public PrintEx(int a, int b) {
int c=a+b;
System.out.println("abc "+ c);
}
public static void main(String[] args) {
System.out.println("Hi
Hello
Wecome");
PrintEx pr = new PrintEx();
}
}

[@SaiTechSolutions]

class Test {
Test() {
System.out.println("Hai");
}
Test(int x) {
this();
System.out.println(x);
}
Test(int x,int y) {
this(5);
System.out.println(x + y);
}
}
class Sai {
public static void main (String[] args) {
new Test(5,5);
}
}

[@mdtausifiqbal]

public class Main
{
public static void main(String[] args)
{
Test a = new Test(1,2);
}
static class Test{
Test(){
this(0);
}
Test(int a){
this(a,0);
}
Test(int a, int b){
System.out.println(a + b);
}
}
}

[@hangoutbuddy]

public class Test
{
Test()
{
System.out.println("Hi");
}
Test(int x)
{
this(); //calls zero arg con
System.out.println("Hello");
}
Test (int x,int y)
{
this(30); //calls int arg con
System.out.println("Bye");
}
public static void main(String[] args) {
Test t=new Test(10,20); //object created and calls int,int param con
}
}

[@devrajsinghchouhan8219]

class Main {
Main()
{
this(3);
System.out.println("Default Constructor");
}
Main(int x)
{
this(3,8);
System.out.println(x +"\t Calling Parameterised Constructor with one value");
}
Main(int x, int y)
{

System.out.println(x*y +"\t Calling Parameterised Constructor with Two value multiplication" );
}
public static void main(String[] args) {
//System.out.println("
Hello" + "\tHi" + "
Bye");
new Main();

}

}

[@rajeshpro2243]

class Main{
private int age;
private int height;
private String name;
public Main(int height){
//this.height = height;
this(height, 23, "Rajesh");
}
public Main(int height, int age, String name){
this.height=height;
this.age = age;
this.name = name;
}
public void printValues(){
System.out.println("name: "+name);
System.out.println("age: "+age);
System.out.println("height: "+height);
}
public static void main(String[] args){
Main obj = new Main(180);
obj.printValues();
}
}

[@mohamedfayazudeenj5762]

class Test
{
Test()
{
sysout("hi");
}
Test(x)
{
this();
sysout(x);
}
Test(x,y)
{
this(8);
sysout(x*y);
}
psvm(string args[])
{
new Test(2,4);
}
}

[@ManojKumar-po5ds]

package VerifyCodingSkills;
public class Program2 {
Program2()
{
System.out.println("hi");
}
Program2(int a)
{
this();
System.out.println("hello");
}
Program2(int a,String s)
{
this(10);
System.out.println("Bye");
}
public static void main(String[] args)
{
Program2 p2 = new Program2(7,"Max");

}
}

[@jagadishmahato3361]

😊😊

[@narsireddygade5413]

import java.util.Scanner;
public class DuplicateArray
{
public static void main(String[] args)
{
Scanner s = new Scanner(System.in);
System.out.println("Enter the size of an Array...");
int arr[] = new int[s.nextInt()];
System.out.println("Enter "+arr.length+" elements for the array...");
for(int i=0;i

[@simpleprogramms9769]

import java.util.*;
class Challenge2
{
public static void main(String[] args)
{
Scanner sc=new Scanner(System.in);
System.out.print("Enter the number:");
int a=sc.nextInt();
if(a%2!=0)
System.out.println("Hello");
else if(a>=0 && a=10 && a20)
System.out.println("Bye");

}
}

[@akshaygupta9976]

Easy task

[@akshaygupta9976]

Give some challenging

[@vishaljadhav4720]

public class P2 {
P2()
{
this(10);
System.out.println("Hii");
}
P2(int x)
{
this(10,20);
System.out.println("Hello");
}
P2(int x, int y)
{
System.out.println("Bye");
}
public static void main(String[] args) {

P2 obj=new P2();
}
}

[@vikasdubbaka7582]

public class Challenge2 {
public Challenge2() {
System.out.println("Constructor-1");
}
public Challenge2(int x) {
this();
System.out.println("Constructor-2");
}
public Challenge2(int y, int z) {
this(5);
System.out.println("Consttructor-3");
}
public static void main(String[] args) {
Challenge2 ch = new Challenge2(5, 7);
}
}

[@SaiTechSolutions]

class Test {
Test() {
System.out.println("Hai");
}
Test(int x) {
System.out.println(x);
}
Test(int x,int y) {
System.out.println(x + y);
}
}
class Sai {
public static void main (String[] args) {
new Test();
new Test(5);
new Test(5,5);
}
}

[@HappyDaysINDIA]

class Test{
Test() {
System.out.println("This is Test");
}
Test(int x){
this();
System.out.println("This is Test "+x);
}
Test(int x,int y){
this(20);
System.out.println("This is Test "+x+" "+y);
}
}
public class ConstructorCalling {
public static void main(String[] args) {
Test t = new Test(10,15);
}
}

[@jyothichinthapally5825]

I did not understand the concept

[@sreedharkamera9553]

public final class Test
{
Test(int x,int y)
{
this(x);
System.out.println("third con:"+x + "y valye:"+y);
}
Test(int x)
{
this();
System.out.println("second contrsotr"+x);
}
Test()
{
System.out.println("first construtor");
}
public static void main(String[] args){
Test t =new Test(10,20);
}
}

[@chanchalsahu7150]

public class PC2
{
PC2()
{
//PC2(); //CE: cannot find symbol
//this(); //CE:recursive constructor invocation
//this(10);
System.out.println("Constructor Called");
}
PC2(int x)
{
this();
}
PC2(String name, int roll)
{
this(10);
}
public static void main(String[] args)
{
System.out.println("Main Method");
PC2 obj1=new PC2();
PC2 obj2=new PC2(10);
PC2 obj3=new PC2("KundaN",10);
}

}

[@satishkumar-bf3jy]

package interview;
public class ConstruterChanning
{
public ConstruterChanning()
{
this(1,2);
System.out.println("hii");
}

public ConstruterChanning( int x)
{
this();
System.out.println("hellow");

}
ConstruterChanning( int x,int y)
{


System.out.println("satish");
}
public static void main(String[] args)
{
new ConstruterChanning(10);


}
}

[@vaibhavshetter9085]

Class Test
{
Test()
{
this(6);
System.out.println(“hi”);
}
Test(int x)
{
this(6,7);
System.out.println(“hello”);
}
Test(int x,int y)
{
System.out.println(“bye”);
}
PSVM()
{
Test t=new Test();
}

[@sumitjadhav3573]

public class ConstructorChaning {
ConstructorChaning()
{

System.out.println("hi");
}

ConstructorChaning(int a)
{
this();
System.out.println("hello");
}

ConstructorChaning(int a,int b)
{
this(12);
System.out.println("Namaste");
}
public static void main(String[] args) {
new ConstructorChaning(20,23);

}
}

[@nk958]

package org.example;
public class App
{
private int x;
private int y;
public App(int x, int y) {
this(10);
this.x = x;
this.y = y;
System.out.println("constructor App 2nd");
}
public App(int x) {
this();
this.x = x;
System.out.println("constructor App 3rd");
}
public App() {
System.out.println("constructor App 1st");
}
public static void main(String[] args )
{
App app=new App(10,20);
}
}

[@NareshIT]

If you have any queries, Please ask our experts and Share your precious feedback in the comments, Learn from experts with our Online training Program, visit our website: goo.gl/hNPwDi ,Do not forget to subscribe and hit the bell icon for Future Tutorials updates.

[@ashwadhreddy5152]

is this challenging are you feeling wasting time

[@pankajlilhore]

@Srinivas Garapati i am following but didn't found any challenging task or concept

[@easywaytostudy8061]

Java code chalange th-cam.com/users/shortsltgMz_nyZBE?si=jxae4Zp21gArbDwB

[@danyalaabid]

public class Challenge2
{
Challenge2()
{
this(5);
System.out.println("Hi");
}
Challenge2(int x)
{
this(5,6);
System.out.println("Hello");
}
Challenge2(int x, int y)
{
System.out.println("Bye");
}
public static void main(String []args){
new Challenge2();
}
}

[@vinaykoudagani787]

package p1;
public class Challenge2 {
Challenge2(){
System.out.println("Hi");

}
Challenge2(int x){
this();
System.out.println("Hello");
}
Challenge2(int x , int y){
this(10);

System.out.println("Bye");
}
public static void main(String[] args) {
Challenge2 ob = new Challenge2(10,20);


}
}

[@shitaldhavale7141]

Class Test {
Test() {
Test(10) ;
System.out.println("hi") ;
}
Test(int x) {
Test(10, 20) ;
System.out.println("hello") ;
}
Test(int x, int y) {
System.out.println("bye") ;
}
public static void main(String [ ] args) {
Test t = new Test() ;
}
}

[@Kafi_relatable]

why did you use test(10) in 3rd line and test(10,20) in 7th line

[@AktherBrothersOfficial]

public class Main
{
public Main() {
this(5);
System.out.println("Bye");
}
public Main(int x) {
this(5, 2);
System.out.println("Hello");
}
public Main(int x, int y) {
System.out.println("Hi");
}
public static void main(String[] args) {
Main m = new Main();
}
}

[@Kafi_relatable]

why did you use this(5) an d this(5,2) what is use of 5 and 2

[@AktherBrothersOfficial]

@@Kafi_relatable Calling the constructor of Main. And depending on the number of arguments like (5) or (5,2), an appropriate constructor is called.

[@Yogesh-ld2js]

class Challenge2{
Challenge2(){
System.out.println("Hi");
}
Challenge2(int x){
this();
System.out.println("Hello");
}
Challenge2(int x,int y){
this(2);
System.out.println("Bye");
}
public static void main(String[] args) {
Challenge2 ch=new Challenge2(1,2);
}
}

[@arbajshaikh]

class Challenge2
{
Challenge2(){
System.out.println("Hi");
}
Challenge2(int x){
this();
System.out.println("Hello");
}
Challenge2(int x,int y){
this(10);
System.out.println("Bye");
}
public static void main(String[] args)
{
Challenge2 challenge = new Challenge2(10,20);
}
}

[@ananthasasikalap9863]

can u pls explain this code