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Question 1 : Why does the method not return the correct value? Q 2 : What specif

ID: 3784901 • Letter: Q

Question

Question 1 : Why does the method not return the correct value?

Q 2 :   What specific stylistic choice is the cause of the problem?

Q 3 : fix the while loop in that it works. Thank you

int countMatchingChars(String string, char toMatch) {

       int count = 0;

          boolean isMatched = false;

          int i = 0;

          while (i < string.length())

          if (string.charAt(i) == toMatch)

          isMatched = true;

          count+=1;

          i++;

          if (isMatched==true)

          return count;

          else

          return 0;

              }

Explanation / Answer

//Tested on Eclipse

/************************CharCount.java*************************/

public class CharCount {
   static int countMatchingChars(String string, char toMatch) {
       // variable declarations
       int count = 0;
       boolean isMatched = false;

       int i = 0;
       /**
       * in loop we are checking if specific character is matching with
       * toMatch character if its match then we increase count to 1
       * */
       while (i < string.length()) {
           if (string.charAt(i) == toMatch) {
               isMatched = true;
               count += 1;
           }
           i++;
       }

       if (isMatched == true) {
           return count;
       } else {
           return 0;
       }
   }

   public static void main(String[] args) {

       // calling method
       int count = CharCount.countMatchingChars("Hello world", 'l');
       System.out.println("Count of matched Character is " + count);

   }
}

/******************output*******************/

Count of matched Character is 3

Thanks a lot

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