Ex7_3 코드

package org.javaro.lecture; public class Ex7_3 { public static void main(String[] args) { System.out.println("조병수-20191016-객체"); Dist3 dist1=new Dist3(); dist1.x1=10; dist1.y1=30; dist1.x2=20; dist1.y2=60; double c=dist1.dLength(); System.out.println("두점사이 거리는"+c); } } class Dist3{ int x1,y1,x2,y2; Dist3(){ } public double dLength() { return Math.sqrt((this.x2-this.x1)*(this.x2-this.x1)+(this.y2-this.y1)*(this.y2-this.y1)); } }

실행창

lobster