zoukankan      html  css  js  c++  java
  • 11.06第九次、

    1——————————————————————————————————————

    package GJS1;
    
    public class GJS {
        private double radius;
    
        public GJS(double radius) {
            this.radius = radius;
        }
    
        public GJS() {
            this.radius = 1;
        }
    
        public double getArea() {
            return radius * radius * Math.PI;
    
        }
    
        public double getPerimeter() {
            return 2 * Math.PI * radius;
        }
        public void setRadius(double newRadius) {
            this.radius=newRadius;
        }
    }
    package GJS1;
    
    public class DemoCircle {
        public static void main(String[] args) {
            GJS circle1=new GJS();
            double area=circle1.getArea();
            System.out.println(area);
            GJS circle2=new GJS(10);
            System.out.println(circle2.getArea());
            System.out.println(circle1.getPerimeter());
            System.out.println(circle2.getPerimeter());
            double ridius=10;
            double areaCircle=Math.PI*ridius*ridius;
            System.out.println(areaCircle);
            circle2.setRadius(5);
            System.out.println(circle2.getArea());
        }
    }

    2——————————————————————————————————————————————————————

    package GJS1;
    
    public class GJS {
    
        private double radius;
        public GJS() {
            this.radius=1;
        }
        public GJS(double radius){
            this.radius=radius;
        }
        public double getArea() {
            // TODO Auto-generated method stub
            return Math.PI*radius*radius;
        }
        public double getPerimeter() {
            return 2*Math.PI*radius;
        }
        
        public static void main(String[] args) {
            GJS cir1=new GJS();
            System.out.println("The area of the circle of radius "+cir1.radius+" is "+cir1.getArea());
            GJS cir2=new GJS(10);
            System.out.println("The area of the circle of radius "+cir2.radius+" is "+cir2.getArea());
        }
    }

    3———————————————————————————————————————————————————————————

    package GJS1;
    
    public class Z {
        public int channel=1;
        public int volumeLevel=1;
        public boolean on=false;
        
        public Z() {
            
        }
        public void turnOn() {
            on =true;
            System.out.println("电视机已经打开了。");
        }
        public void turnOff() {
            on=false;
            System.out.println("电视机已经关闭了。");
        }
        public int getChannel() {
            return channel;
        }
        public void setChannel(int channel) {
            if(on) {
                System.out.println("电视机已开,可以开始调台了。");
                if(channel>=1&&channel<=120) {
                    this.channel = channel;
                    System.out.println("频道已经调到 "+channel+" 台");
                }else {
                    System.out.println("你要调的频道不存在。");
                }
            }else {
                System.out.println("电视机关着的时候是不能调台的");
            }
        }
        public int getVolumeLevel() {
            return volumeLevel;
        }
        public void setVolumeLevel(int volumeLevel) {
            if(on) {
                System.out.println("电视机已开,声音大小可调了");
                if(volumeLevel>=1&&volumeLevel<=7) {
                    this.volumeLevel = volumeLevel;
                    System.out.println("声音的大小设置成了 "+volumeLevel+" 大小");
                }
            }else {
                System.out.println("电视机关着的时候是不能调声音的");
            }
            
        }
        public void channelUp() {
            if(on&&channel<120) {
                channel++;
            }
        }
        public void channelDown() {
            if(on&&channel>1) {
                channel--;
            }
        }
        public void volumeUp() {
            if(on&&volumeLevel<7) {
                volumeLevel++;
            }
        }
        public void volumeDown() {
            if(on&&volumeLevel>1) {
                volumeLevel--;
            }
        }
        
        
    }
    package GJS1;
    
    public class GJS {
    
        public static void main(String[] args) {
    //        TV tv1=new TV();
    //        tv1.turnOff();
    //        tv1.setChannel(30);
    //        tv1.setVolumeLevel(3);
            
            Z tv2=new Z();
            tv2.turnOn();
            System.out.println("TV2's channel is "+tv2.channel+" and volume is "+tv2.volumeLevel);
            tv2.channelUp();
            System.out.println("TV2's channel is "+tv2.channel+" and volume is "+tv2.volumeLevel);
            tv2.channelUp();
            System.out.println("TV2's channel is "+tv2.channel+" and volume is "+tv2.volumeLevel);
            tv2.channelUp();
            System.out.println("TV2's channel is "+tv2.channel+" and volume is "+tv2.volumeLevel);
            tv2.volumeUp();
            System.out.println("TV2's channel is "+tv2.channel+" and volume is "+tv2.volumeLevel);
            tv2.volumeUp();
            System.out.println("TV2's channel is "+tv2.channel+" and volume is "+tv2.volumeLevel);
            tv2.volumeUp();
            System.out.println("TV2's channel is "+tv2.channel+" and volume is "+tv2.volumeLevel);
            
            
        }
    
    }

  • 相关阅读:
    mysql CREATE USER
    ConvertHelper 通用类
    自定义属性
    为什么建议使用你LocalDateTime,而不是Date?
    使用IDEA插件Alibaba Cloud Toolkit工具一键部署本地应用到ECS服务器
    IDEA-SpringBoot项目设置热部署
    CentOS7中MySQL跨机器数据迁移
    Centos7 使用YUM安装Mariadb
    Linux下svn服务器迁移
    java dateutil工具类Date.add()
  • 原文地址:https://www.cnblogs.com/fm10086/p/7862581.html
Copyright © 2011-2022 走看看