051 - Accumulator Method Challenge 1 (optional)

Write a method header on line two with the following specs:

Returns: an integer Name: countString Parameters: a String called str a String called toFind Purpose: Count the number of occurrences of toFind within str. See below examples.

 

Examples:

• countString("crazy crayfish crushing craniums", "cra") ==> 3
• countString("sometimes solutions dont come on time", "me") ==> 4

---

Solution

class Main {
    public static int countString(String str,String toFind)
    {
        int cnt=0;
        for(int i=0;i<str.length()-toFind.length()+1;i++) {
            if(str.substring(i,i+toFind.length()).equals(toFind)) {                
                cnt++;
            }
        }
        return cnt;
    }
    
    //test case below (dont change):
    public static void main(String[] args){
        System.out.println(countString("crazy crayfish crushing craniums", "cra")); //3
        System.out.println(countString("sometimes solutions dont come on time", "me")); //4
    }
}