Question

实现Java程序，包括两个类：圆柱类Cylinder和主类TestCylinder,求出圆柱体的侧面积、表面积和体积

Answer 1

//Cylinder类
public class Cylinder {
private static final double PI = 3.1415926;

private double height; //圆柱体的高
private double radius; //底面半径

public double getHeight() {
return height;
}

public void setHeight(double height) {
this.height = height;
}

public double getRadius() {
return radius;
}

public void setRadius(double radius) {
this.radius = radius;
}

public Cylinder() {}

public Cylinder(double height, double radius) {
this.height = height;
this.radius = radius;
}

public double getSideArea(){

return 2*PI*radius*height;
}

public double getFullArea(){
return (getSideArea()+PI*radius*radius*2);
}

public double getVolume(){
return PI*radius*radius*height;
}
}

//TestCylinder类

public class TestCylinder {
public static void main(String[] args) {
Cylinder cylinder = new Cylinder(5.5, 3.5);
System.out.println("圆柱体侧面积： "+cylinder.getSideArea());
System.out.println("圆柱体表面积: "+cylinder.getFullArea());
System.out.println("圆柱体体积: "+cylinder.getVolume());
}
}

Answer 2

Answer 3