Question

Using Java language,

Write a program that read a string from the keyboard and counts the number of the letter A and the number of letter B and then prints the result

Answer 1

Solution :

CODE :

package countchar;

import java.util.Scanner;

public class CountChar {

  
public static void main(String[] args) {
  
Scanner sc = new Scanner(System.in);
int countA=0, countB=0;
// ask user to enter string here
System.out.println("Enter String to count 'A' and 'B' : ");
String inputString = sc.nextLine();
  
// count number of A and B.
for(int i=0; i<inputString.length(); i++){
if(inputString.charAt(i) == 65){
countA++;
}
else if(inputString.charAt(i) == 66){
countB++;
}
  
}
  
  
// print the output :
System.out.println("Number of 'A' in String : " + countA);
System.out.println("Number of 'B' in String : " + countB);
}
  
}

Sample output :

if you have any doubts then you can ask in comment section if you find the solution helpful then upvote the answer. Thank you.