java容器--------泛型
package cn.zxg.collection;
/**
* 测试泛型
*/
public class TestGenric {
public static void main(String[] args) {
MyCollection mc=new MyCollection<>();
mc.set("小白",1);
mc.set("小黑",2);
String b=mc.get(1);
System.out.println(b);
}
}
class MyCollection{
Object[] obj=new Object[5];
public void set(E e,int index){
obj[index]=e;
}
public E get(int index){
return (E)obj[index];
}
}
