标签：gif out new t 代码 rgs img moc math image
package Hzy;
public class Circle {
private double radius;
public Circle(double radius) {
this.radius = radius;
}
public Circle() {
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 Hzy;
public class DemoCircle {
public static void main(String[] args) {
Circle circle1=new Circle();
double area=circle1.getArea();
System.out.println(area);
Circle circle2=new Circle(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());
}
}
package Hzy;
public class SimpleCircle {
private double radius;
public SimpleCircle() {
this.radius=1;
}
public SimpleCircle(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) {
SimpleCircle cir1=new SimpleCircle();
System.out.println("The area of the circle of radius "+cir1.radius+" is "+cir1.getArea());
SimpleCircle cir2=new SimpleCircle(10);
System.out.println("The area of the circle of radius "+cir2.radius+" is "+cir2.getArea());
}
}
package Hzy;
public class TV {
public int channel=1;
public int volumeLevel=1;
public boolean on=false;
public TV() {
}
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 Hzy;
public class TestTV {
public static void main(String[] args) {
TV tv1=new TV();
tv1.turnOn();
tv1.setChannel(30);
tv1.setVolumeLevel(3);
TV tv2=new TV();
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);
}
}
标签：gif out new t 代码 rgs img moc math image
原文地址：http://www.cnblogs.com/kuangzhiwei/p/7899599.html
