comparison - Comparing Stack value to String in java -

i trying following code:

import java.util.stack; public class helloworld{   public static void main(string []args){     stack s=new stack();     s.push(5-4);     s.push(9);     s.push(51);     if(s.get(1).equals("9"))         system.out.println("yes comparable");     system.out.println(s.get(1));   } } 

the actual output is:

9 

i expect output be:

yes comparable 9 

i unable figure out. have tried s.get(1)=="9" doesn't work too. might key behind this? both not strings? or 1 string 1 object still comparable. can enlighten me on this?

9 integer. "9" string.

s.get(1).equals("9"); // false s.get(1).equals(9); // true