集合中存儲自定義對象：

package attention;import java.util.ArrayList; import java.util.Collection; import java.util.Iterator;public class Main_7 {public static void main(String[] args){Collection coll=new ArrayList();coll.add(new Person("List1",21));coll.add(new Person("List2",22));coll.add(new Person("List3",23));// 取出元素Iterator it=coll.iterator();while(it.hasNext()){Person p=(Person)it.next();System.out.println(p.getName()+":"+p.getAge());}} } package attention;public class Person {private String name;private int age;// alt+shift+s 獲得get、set方法public Person() {super();// TODO Auto-generated constructor stub}public Person(String name, int age) {super();this.name = name;this.age = age;}/*** @return the name*/public String getName() {return name;}/*** @param name the name to set*/public void setName(String name) {this.name = name;}/*** @return the age*/public int getAge() {return age;}/*** @param age the age to set*/public void setAge(int age) {this.age = age;}}

總結

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