泛化只能用于对象

/** * */package test.fanxing;/** * @author 2172980000502 * */public class GenDemo {/** * @param args */public static void main(String[] args) {// TODO Auto-generated method stub// ----------------- test 1 --------------------Gen<Integer> iOb;iOb = new Gen<Integer>(88);System.out.println(iOb.getOb());System.out.println(iOb.getType());// ----------------- test 2 --------------------// Gen<int> iOb1;// It's wrong! T must be a object!// ----------------- test 3 --------------------Gen<String> iOb2;iOb2 = new Gen<String>("hello");System.out.println(iOb2.getOb());System.out.println(iOb2.getType());}}