Question

How to check if a string contain only three same repeating characters in Java

Answer 1

public class MyClass {
    static boolean contain_only_three_same_repeating_chars(String s) { 
        int len = s.length();
        if (len % 3 != 0) return false;
        for (int i = 0; i < len - 3; i++) { 
            if (s.charAt(i) != s.charAt(i + 3)) { 
                return false; 
            } 
        } 
        return true; 
    } 
    
    public static void main(String args[]) {
        String s = "xyzxyzxyz"; 
    
        if (contain_only_three_same_repeating_chars(s)) 
            System.out.print( "Yes"); 
        else
            System.out.print("No"); 
        }
}
  
  
  
  
/*
run:
  
Yes
  
*/

 

70+ SQL courses for beginners and professionals