第九次作业

把多个企鹅的信息添加到集合中
查看企鹅的数量及所有企鹅的信息
删除集合中部分企鹅的元素
判断集合中是否包含指定企鹅

package xz7;

public class chap {
    String name="无名氏";
    String sex="Q仔";
    public chap(String name,String sex){
        this.name=name;
        this.sex=sex;
    }
    public String getName(){
        return name;
    }
    public void setName(String name){
        this.name=name;
    }
    public String getSex(){
        return sex;
    }
    public void setSex(String sex){
        this.sex=sex;
    }

}

package xz7;

import java.awt.List;
import java.util.ArrayList;

public class Test {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        //把多个企鹅的信息添加到集合中
        chap ououchap=new chap("欧欧","Q仔");
        chap yayachap=new chap("亚亚","Q妹");
        chap meimeichap=new chap("美美","Q妹");
        chap feifeichap=new chap("菲菲","Q妹");
        
        ArrayList penList=new ArrayList();
        penList.add(ououchap);
        penList.add(yayachap);
        penList.add(meimeichap);
        penList.add(feifeichap);
        //查看企鹅的数量及所有企鹅的信息
        System.out.println("共计有"+penList.size()+"只企鹅。");
        System.out.println("分别是:");
        for(int i=0;i<penList.size();i++){
            chap qe=(chap)penList.get(i);
            System.out.println(qe.getName()+"\t"+qe.getSex());
        }
        //删除集合中部分企鹅的元素
        penList.remove(yayachap);
        penList.remove(feifeichap);
        System.out.println("\n删除之后还有"+penList.size()+"只企鹅。");
        System.out.println("分别是:");
        for(int i=0;i<penList.size();i++){
            chap qe=(chap)penList.get(i);
            System.out.println(qe.getName()+"\t"+qe.getSex());
        }
        //判断集合中是否包含指定企鹅
        if(penList.contains(meimeichap))
            System.out.println("\n集合中包含美美的信息");
        else
            System.out.println("\n集合中不包含美美的信息");
    }

}