Question

java求两点间的距离要求保存两个点的坐标使用一个二维数组保存计算公式提示平面两点的长度公式

package out.deoble.java;import java.util.Scanner;public class chenghu { public static void main(String[] args) { double[][] num = new double [2][2]; Scanner scan = new Scanner(System.in); System.out.println("请输入A点的X轴："); num[0][0] = scan.nextDouble(); System.out.println("请输入A点的Y轴："); num[0][1] = scan.nextDouble(); System.out.println("请输入B点的X轴："); num[1][0] = scan.nextDouble(); System.out.println("请输入B点的Y轴："); num[1][1] = scan.nextDouble(); double num1 = Math.sqrt((num[0][0]-num[1][0])*(num[0][0] - num[1][0]) + (num[0][1] - num[1][1])*(num[0][1] - num[1][1])); System.out.println(num1); }}

Answer 1

package com;

import java.awt.Point;

public class JuLi {

public static void main(String[] args) {
Point p1 = new Point(5, 5);// 定义第一个点的坐标(5,5),或者你自己设置x,y坐标
Point p2 = new Point(6,6);// 定义第一个点的坐标(5,5),或者你自己设置x,y坐标
// 两点间距离

double jili = Math.sqrt(Math.abs((p1.getX() - p2.getX())
* (p1.getX() - p2.getX())+(p1.getY() - p2.getY())
* (p1.getY() - p2.getY())));
System.out.println("两点间的距离是:" + jili);
}

}