Question

Is there any default method in Java that can count total occurrence of a word? For example, how many times stack occurred in a string “stack is stack”.

Edit: please only Java no third party library.

Answer 1

There is no built-in .matchCount() method. Here is my impl.

public static int matchCount(String s, String find) {
     String[] split = s.split(" ");
     int count = 0;

     for(int i=0; i<split.length; i++){
        if(split[i].equals(find)){
           count++;
        }
     }
     return count;
 }


String s = "stack is stack";
System.out.println(matchCount(s, "stack")); // 2