package four;
class Cylinder{
private double radius;
private int height;
private double pi=3.14;
String color;
public Cylinder(){
this(2.5,5,"红色");
System.out.println("无参构造方法被调用了");
}
public Cylinder(double r,int h,String str){
System.out.println("有参构造方法被调用了");
radius=r;
height=h;
color=str;
}
public void show(){
System.out.println("圆柱底半径为："+radius);
System.out.println("圆柱体的高为："+height);
System.out.println("圆柱的颜色为："+color);
}
double area(){
return pi*radius*radius;
}
double volume(){
return area()*height;
}
}
public class TestThis3 {
/**
* @param args
*/
public static void main(String[] args) {
// TODO Auto-generated method stub
Cylinder c=new Cylinder();
System.out.println("圆柱底面积="+c.area());
System.out.println("圆柱体体积="+c.volume());
c.show();
}
}
javaDuiXiang.zip_Java类和对象
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2022-09-24
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javaDuiXiang.zip （52个子文件） 
第六章Java类和对象 bin three 
StudentDemo.class 1KB ObjectCom.class 591B ObjArray.class 892B node.class 673B Person.class 474B sDate.class 1KB Cylinder.class 809B ObjMember.class 456B Man.class 910B five StaticDemo.class 618B StaticApp.class 928B StaticApp2.class 938B Cylinder2.class 1KB Cylinder.class 1KB ShowDemo.class 1KB six Bird.class 710B Animal.class 952B insects.class 814B four Car.class 865B Demo.class 441B Demo2.class 535B TestThis2.class 926B TestThis1.class 627B TestClass.class 511B Cylinder.class 1KB TestThis3.class 881B seven ValueTransfer.class 1KB MethodCallDemo.class 397B SimpleClass.class 292B two Rabit.class 393B Rectangle.class 458B Myclass.class 533B RectangleTest.class 870B .settings org.eclipse.jdt.core.prefs 598B src three ObjArray.java 752B ObjectCom.java 623B ObjMember.java 901B StudentDemo.java 467B five StaticApp.java 768B ShowDemo.java 769B StaticApp2.java 806B six insects.java 727B four TestClass.java 406B TestThis1.java 349B TestThis2.java 408B TestThis3.java 910B seven ValueRransfer.java 683B MethodCallDemo.java 172B two Myclass.java 271B RectangleTest.java 450B .project 401B .classpath 299B资源评论
