Java Program To Count Occurrences Of Each Character in a String

[@bharathiyandra166]

i did not fount any channel like this .good explination and different programs ,,,,,,,,,,,,how many ways to solve a problem

[@ProgrammingTutorials1M]

Thank you

[@HasnathAli]

great.

[@ProgrammingTutorials1M]

Thank you

[@vincent1552]

Best video 🎉

[@ProgrammingTutorials1M]

Thanks

[@nammatulunadu7022]

you didnt explain what is map,chaemapcount,hashmap etc,as a beginner very difficult to understand

[@ProgrammingTutorials1M]

In my new videos, i have explained all the functions which is present used in code.

[@rahulrathod8959]

Is it possible to solve this problem without using map data structure??

[@prasadpatil4016]

I also want to know

[@arjunkhanna1803]

id doesn't work if we want to count char frequency ignoring the case of char
ex : if i write Aarjun then freq of A =1 and a =1
what to do in this situation??

[@ProgrammingTutorials1M]

You have to ignore the letter case.

[@areukiddinme8438]

you can apply either (string name.toUpperCase) or (string name.toLowerCase) and store it back to the same string if ya want.
by now i think u already know haha

[@Amitkumar-xy2kw]

bhai thoda tej bolo please i could hardly hear you..

[@mohammedajazquadri7869]

Get(c)+1 what is purpose of adding 1 ??

[@ProgrammingTutorials1M]

It means we are incrementing the value by 1 whenever we encounter the same value.

[@belcruz25]

what if the user want to check the occurrence of three or more letters. for example the user input a string: "how are you" and user want to get the occurrence for the letter: oru what will be the code?

[@ProgrammingTutorials1M]

Hi Rosabel, In this case print the occurrence of only these characters.

[@belcruz25]

for(int i = 0; i< sentence.length(); i++){for(int x=0; x

[@ProgrammingTutorials1M]

Create a map of character and count. And then add the count of characters.
Map charMapCount = new HashMap();
for(Character c : str.toCharArray()) {
if(charMapCount.containsKey(c)) {
charMapCount.put(c, charMapCount.get(c) + 1);
} else {
charMapCount.put(c, 1);
}
}
int count = 0;
int sum = 0;
for(Map.Entry entry : charMapCount.entrySet()) {
//Check for character and the do the sum
if(charMapCount.containsKey(ch)) {
sum = sum + charMapCount.get(ch);
}
}

[@belcruz25]

Thanks. I will try it

[@HOPE98901]

your sound is so low

[@neelshah720]

shortest man 😎 well explained just speak little more loud

[@ProgrammingTutorials1M]

Haha, Sure

[@keerthidammu7700]

Well... explained 😃

[@ProgrammingTutorials1M]

Thank you.

[@pratheekbhat2758]

Which application are u using to compile java?

[@ProgrammingTutorials1M]

It's eclipse.