java 中泛型的使用

/* *  * 功能：泛型 */package com.haitao.array;import java.util.*;public class Demo6_3 {public static void main(String[] args) {ArrayList<Dog1> al=new ArrayList<Dog1>();//创建一只狗Dog1 dog1=new Dog1();al.add(dog1);//取出Dog1 temp=al.get(0);System.out.println(temp.getName());}}class Cat{private String color;private int age;public String getColor(){return color;}}//定义狗类class Dog1{private String name;private int age;public String getName() {return name;}public void setName(String name) {this.name = name;}public int getAge() {return age;}public void setAge(int age) {this.age = age;}}