Ex7_4 코드

package org.javaro.lecture; public class Ex7_4 { public static void main(String[] args) { System.out.println("조병수-20191016-객체"); Dist4 dist1=new Dist4(); dist1.setX1(10); dist1.setY1(30); dist1.setX2(20); dist1.setY2(60); double c=dist1.dLength(); System.out.println("두점사이 거리는"+c); } } class Dist4{ private int x1,y1,x2,y2; public void setX1(int x1) { this.x1=x1; } public void setY1(int y1) { this.y1=y1; } public void setX2(int x2) { this.x2=x2; } public void setY2(int y2) { this.y2=y2; } public double dLength() { return Math.sqrt((this.x2-this.x1)*(this.x2-this.x1)+(this.y2-this.y1)*(this.y2-this.y1)); } }

실행창

lobster