文章内容
一、文字版格斗游戏
二、对象数组1
三、对象数组2
四、对象数组3
五、对象数组4
题目代码如下：
文字版格斗游戏
格斗游戏，每个游戏角色的姓名，血量，都不相同，再选定人物的时候(new对象的时候)，这些信息就应该被确定下来，例如：
import java.util.Random;
public class Role {
private String name;
private int blood;
public Role() {
}
public Role(String name,int blood) {
this.name=name;
this.blood=blood;
}
public void setName(String name) {
this.name=name;
}
public String getName() {
return name;
}
public void setBlood(int blood) {
this.blood=blood;
}
public int getBlood() {
return blood;
}
public void showRoleInfo() {
System.out.println("姓名为："+getName());
System.out.println("血量为："+getName());
System.out.println("性别为："+getName());
System.out.println("长相为："+getName());
}
public void attack(Role role) {
//计算造成的伤害(1~20)
Random r=new Random();
int hurt=r.nextInt(20)+1;
//剩余血量
int remainBlood=role.getBlood()-hurt;
//对剩余血量做一个验证，如果为负数，就修改为0
remainBlood=remainBlood < 0 ? 0:remainBlood;
//修改一下挨揍人的血量
role.setBlood(remainBlood);
//this表示方法的调用者
System.out.println(this.getName()+"举起拳头打了"+role.getName()+"一下，"
+ "造成了"+hurt+"点伤害，"+role.getName()+"还剩下"+remainBlood+"点血量");
}
}public class GameTest {
public static void main(String[] args) {
// TODO Auto-generated method stub
//创建第一个角色
Role r1=new Role("乔峰",100);
//创建第二个角色
Role r2=new Role("鸠摩智",100);
//开始格斗 回合制游戏
while(true) {
r2.attack(r1);
if(r1.getBlood()==0) {
System.out.println(r2.getName()+"K.O了"+r1.getName());
break;
}
r1.attack(r2);
if(r2.getBlood()==0) {
System.out.println(r1.getName()+"K.O了"+r2.getName());
break;
}
}
}
}对象数组1
需求：
定义数组存储三个商品对象。
商品的属性：商品的id,名字，价格，库存。
创建三个商品对象，并把商品对象放到数组当中。
public class Goods {
private String id;
private String name;
private double price;
private int count;
public Goods() {
}
public Goods(String id,String name,double price,int count) {
this.id=id;
this.name=name;
this.price=price;
this.count=count;
}
public void setId(String id) {
this.id=id;
}
public String getId() {
return id;
}
public void setName(String name) {
this.name=name;
}
public String getName() {
return name;
}
public void setPrice(int price) {
this.price=price;
}
public double getPrice() {
return price;
}
public void setCount(int count) {
this.count=count;
}
public int getCount() {
return count;
}
}public class TestGoods {
public static void main(String[] args) {
// TODO Auto-generated method stub
//1.创建一个数组
Goods arr[]=new Goods[3];
//2.创建三个商品对象
Goods g1=new Goods("001","华为p40",5999.0,100);
Goods g2=new Goods("002","保温杯",277.0,50);
Goods g3=new Goods("003","枸杞",12.7,70);
//3.把商品添加到数组中
arr[0]=g1;
arr[1]=g2;
arr[2]=g3;
//4.遍历
for(int i=0;i<arr.length;i++) {
Goods good=arr[i];
System.out.println(good.getId()+", "+good.getName()+", "+good.getPrice()+", "+good.getCount());
}
}
}对象数组2
定义数组存储3部汽车对象。
汽车的属性：品牌、价格、颜色。
创建三个汽车对象，数据通过键盘录入而来，并把数据存放到数组当中。
public class Car {
private String brand;
private int price;
private String color;
public Car() {
}
public Car(String brand,int price,String color) {
this.brand=brand;
this.price=price;
this.color=color;
}
public void setBrand(String brand) {
this.brand=brand;
}
public String getBrand() {
return brand;
}
public void setPrice(int price) {
this.price=price;
}
public int getPrice() {
return price;
}
public void setColor(String color) {
this.color=color;
}
public String getColor() {
return color;
}
}
import java.util.Scanner;
public class TestCar {
public static void main(String[] args) {
// TODO Auto-generated method stub
//1.定义一个数组
Car arr[]=new Car[3];
Scanner sc=new Scanner(System.in);
for(int i=0;i<arr.length;i++) {
//2.创建三个汽车对象
Car c=new Car();
//录入品牌
System.out.println("请输入汽车的品牌：");
String brand=sc.next();
c.setBrand(brand);
//录入价格
System.out.println("请输入汽车的价格：");
int price=sc.nextInt();
c.setPrice(price);
//录入颜色
System.out.println("请输入汽车的颜色：");
String color=sc.next();
c.setColor(color);
//把汽车对象放到数组中
arr[i]=c;
}
for(int i=0;i<arr.length;i++) {
Car car=arr[i];
System.out.println(car.getBrand()+", "+car.getPrice()+", "+car.getColor());
}
}
}
对象数组3
定义数组存储3部手机对象。
手机的属性：品牌、价格、颜色。
要求计算出三部手机的平均价格
public class Phone {
private String brand;
private int price;
private String color;
public Phone() {
}
public Phone(String brand,int price,String color) {
this.brand=brand;
this.price=price;
this.color=color;
}
public void setBrand(String brand) {
this.brand=brand;
}
public String getBrand() {
return brand;
}
public void setPrice(int price) {
this.price=price;
}
public int getPrice() {
return price;
}
public void setColor(String color) {
this.color=color;
}
public String getColor() {
return color;
}
}
public class TestPhone {
public static void main(String[] args) {
// TODO Auto-generated method stub
//1.定义数组用来存储三部手机
Phone arr[]=new Phone[3];
//2.创建三部手机对象
Phone p1=new Phone("小米",1999,"白色");
Phone p2=new Phone("华为",4999,"蓝色");
Phone p3=new Phone("魅族",3999,"红色");
//3.把手机对象添加到数组当中
arr[0]=p1;
arr[1]=p2;
arr[2]=p3;
//4.遍历
int sum=0;
for(int i=0;i<arr.length;i++) {
Phone phone=arr[i];
//获得每个手机的价格
sum+=phone.getPrice();
}
//5.计算手机的平均值
int avg=sum/arr.length;
System.out.println("手机的平均值为："+avg);
}
}
对象数组4
定义数组存储4位学生对象。
学生的属性：姓名、年龄、姓名、爱好。
统计年龄比平均值低的学生有几个？并把他们的所有信息都打印出来
public class Student {
private String name;
private int age;
private String gender;
private String hobby;
public Student() {
}
public Student(String name,int age,String gender,String hobby) {
this.name=name;
this.age=age;
this.gender=gender;
this.hobby=hobby;
}
public void setName(String name) {
this.name=name;
}
public String getName() {
return name;
}
public void setAge(int age) {
this.age=age;
}
public int getAge() {
return age;
}
public void setGender(String gender) {
this.gender=gender;
}
public String getGender() {
return gender;
}
public void setHobby(String hobby) {
this.hobby=hobby;
}
public String getHobby() {
return hobby;
}
}
public class TestStudent {
public static void main(String[] args) {
// TODO Auto-generated method stub
//1.创建学生数组
Student arr[]=new Student[4];
//2.创建学生对象
Student s1=new Student("小林",19,"男","打游戏");
Student s2=new Student("小惠",20,"女","看书");
Student s3=new Student("小单",21,"男","写作业");
Student s4=new Student("小诗",22,"女","学习");
//3.把对象添加到数组当中
arr[0]=s1;
arr[1]=s2;
arr[2]=s3;
arr[3]=s4;
int sum=0;
for(int i=0;i<arr.length;i++) {
Student stu=arr[i];
//获得每个手机的价格
sum+=stu.getAge();
}
int avg=sum/arr.length;
System.out.println("平均年龄为："+avg);
int count=0;
for(int i=0;i<arr.length;i++) {
Student stu=arr[i];
int age=stu.getAge();
if(age<avg) {
count++;
System.out.println(stu.getName()+", "+stu.getAge()+", "+stu.getGender()+", "+stu.getHobby());
}
}
System.out.println("比平均值低的学生有"+count+"个");
}
}
