java构造函数之间的调用–圆柱体类设计

java构造函数之间的调用–圆柱体类设计

//构造函数之间的调用
import java.util.Arrays;
import java.util.Scanner;
class Cylinder{
	private int radius,height;
	Cylinder(){
		this(2,1);

		System.out.println("Constructor no para");
	}
	Cylinder(int r,int h){
		System.out.println("Constructor with para");
		get(r);
		set(h);
	}
	public void get(int r) {
		radius=r;
	}
	public void set(int h) {
		height=h;;
	}
	public int getVolumn() {
		return (int)(Math.PI*radius*radius*height);
	}
}


public class Main {
public static void main(String[] args) {
	Scanner sc=new Scanner(System.in);
	Cylinder c=new Cylinder(sc.nextInt(),sc.nextInt());
	System.out.println(c.getVolumn());
	Cylinder e=new Cylinder();
	System.out.println(e.getVolumn());
}
}