package com.ch05.HashCode; public class HashCode { public static void main(String[] args) { String s = "OK"; StringBuilder sb = new StringBuilder(s); System.out.println("String: " + s.hashCode() + " StringBuilder: " + sb.hashCode()); String t = new String("OK"); StringBuilder tb = new StringBuilder(t); System.out.println("String: " + t.hashCode() + " StringBuilder: " + tb.hashCode()); } }