In Java language write a program that contains the following 3 methods 1.public

Question

In Java language write a program that contains the following 3 methods
1.public static int howMany (char c, String s);
Return the number of times the char c appears in the String s
2.public static String initials(String s)
Assume without checking that s consists of one or more English words, separated by single spaces, no space at the beginning or end,e.g.
"Just a variable assignment".Return the String formed by taking the first letter from each word, e.g."Java".
3.public static middle (String []a)
Assume without checking that each element of array a consists of a word with an odd number of letters. Return the word formed by taking the middle letter of each word. For example, if a contained {"The", "big", "brown", "elephants"}, then the method would return "hioh".
The program should also contain a main method that calls each of these 3 methods, and attach a sample run.

Explanation / Answer

HI, Please find my implementation.

Please let me know in case of any issue.

public class StringOperations {

   public static int howMany (char c, String s){

       int count = 0;

       for(int i=0; i<s.length(); i++)

           if(c == s.charAt(i))

               count++;

       return count;

   }

   public static String initials(String s) {

       String res = "";

       char prev = ' ';

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

           if(prev == ' ')

               res = res + s.charAt(i);

           prev = s.charAt(i);

       }

       return res;

   }

   public static String middle (String []a){

       String res = "";

       for(int i=0; i<a.length; i++){

           int mid = a[i].length()/2;

           res = res + a[i].charAt(mid);

       }

       return res;

   }

   public static void main(String[] args) {

       System.out.println(" 'a' count: "+howMany('a', "edfkneawkdafkdaad"));

       String s = "Just a variable assignment";

       System.out.println(initials(s));

       String[] a= {"The", "big", "brown", "elephants"};

       System.out.println(middle(a));

   }

}

/*

Sample run:

'a' count: 4

Java

hioh

*/

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