public class Wrapper{ public static void main(String args[]){ int i = 500; Integer t = new Integer(i); int j = t.intValue(); // j = 500 String s = t.toString(); // s = "500" System.out.println(t); Integer t1 = new Integer(500); System.out.println(t.equals(t1)); } }//源代码片段来自云代码http://yuncode.net