zoukankan      html  css  js  c++  java
  • 11.06(电视机、圆)第9次作业

    //制作圆类
    package
    cn.wzx.www; public class Circle { private double radius; public Circle(){ this.radius=1; } public Circle(double radius){ this.radius=radius; } public double getArea(){ return radius*radius*Math.PI; } public double getPerimeter(){ return 2*radius*Math.PI; } public void setRadius(double newRadius) { this.radius=newRadius; } }
    package cn.wzx.www;
    
    public class Democirle {
    
        public static void main(String[] args) {
            // TODO 自动生成的方法存根
            Circle circle1=new Circle();
            System.out.println(circle1.getArea());
            Circle circle2=new Circle(10);
            System.out.println(circle2.getArea());
            Circle circle3=new Circle();
            System.out.println(circle3.getPerimeter());
            Circle circle4=new Circle(10);
            System.out.println(circle4.getPerimeter());
            circle2.setRadius(2);
            System.out.println(circle2.getPerimeter());
    
        }
    
    }

    package cn.wzx.www;
    
    public class Simplecircle {
    private double radius;
        
        public Simplecircle(){
            this.radius=1;
        }
        public Simplecircle(double radius){
            this.radius=radius;
        }
        
        public double getArea(){
            return radius*radius*Math.PI;
            
        }
        public double getPerimeter(){
            return 2*radius*Math.PI;
            
        }
        public void setRadius(double newRadius) {
            this.radius=newRadius;
        }
        public static void main(String[] args) {
            // TODO 自动生成的方法存根
            Circle circle1=new Circle();
            System.out.println(circle1.getArea());
            Circle circle2=new Circle(5);
            System.out.println(circle2.getArea());
            Circle circle3=new Circle();
            System.out.println(circle3.getPerimeter());
            Circle circle4=new Circle(10);
            System.out.println(circle4.getPerimeter());
            circle2.setRadius(2);
            System.out.println(circle2.getPerimeter());
    
        }
    
    }

     电视机

    package cn.wzx.www;
    
    public class TestTV {
    
        public static void main(String[] args) {
            // TODO 自动生成的方法存根
            TV tv1=new TV();
            tv1.turnOn();
            tv1.setChannel(6);
            tv1.setChannel(121);
            tv1.setVolumeLevel(5);
            tv1.setVolumeLevel(9);
            
            //tv1.turnOff();
            //tv1.setChannel(6);
            //tv1.setVolumeLevel(5);
            
            TV tv2=new TV();
            tv2.turnOn();
            System.out.println("TV2's channel is "+tv2.channel+" and volume is "+tv2.volumeLevel);
            tv2.channelUp();
            tv2.volumeUp();
            System.out.println("TV2's channel is "+tv2.channel+" and volume is "+tv2.volumeLevel);
    
        }
    
    }

  • 相关阅读:
    设置ios中imageView图片自适应,
    IOS应用之间调用
    XCode debug中添加查找debug和控制台的办法
    初学Java scirpt(判断、循环语句)
    Java Script 字符串操作
    初学 Java Script (算数运算及逻辑术语)
    Ubuntu 配置JDK
    SQL Server 跨库复制表方法小笔记
    Ubuntu 重装 mysql
    Java Script 数组操作
  • 原文地址:https://www.cnblogs.com/jasonzj/p/7801256.html
Copyright © 2011-2022 走看看