// Online Java Compiler
// Use this editor to write, compile and run your Java code online

class HelloWorld {
public static void sqr(int x,int y,int n){

    if(n==1){
      System.out.print(x);
        return;
    }
    if(n==0){
      System.out.print(1);
        return;
    }
    x=x*y;
    
    sqr(x,y,n-1);
    
}
public static void main(String[] args) {
    int n=4;
    int x=3;
    int y=x;
    sqr(x,y,n);
}

}

Is this about code is correct in all test case