java中定义类Point，类中有方法用来求该点到原点的距离

/**
 * 
 */
package com.gem.demo.day05_practice;

import java.util.Scanner;

/**
 *
 * Description:定义类Point，类中有方法用来求该点到原点的距离
 *
 * @author HadwinLing
 *
 * @date 2020年1月14日下午5:56:48
 *
 * @version 0.0.1 
 *
 */
public class PointTest {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
	point point1 = new point(1,1);
	point point2 = new point(4,5);
	System.out.println("point1与point2的长度为     "+getLength(point1,point2));
	}
	public static double getLength(point point1,point point2) {
		double lenX = point1.pointX-point2.pointX;
		double lenY = point1.pointY-point2.pointY;
		double len = Math.sqrt(lenX*lenX+lenY*lenY);
		return len;
	}
}
class point{
	int pointX;
	int pointY;
	point(){
		pointX= 0;
		pointY=0;
	}
	point(int pointX,int pointY){
		this.pointX = pointX;
		this.pointY = pointY;
	}
}