第4題

import java.awt.geom.Point2D;
class ComputeDistance {
public static void main (String args[]) {double sum;Point2D.Double p1 = new Point2D.Double(371271.1364, 2781403.89);Point2D.Double p2 = new Point2D.Double(371306.8203, 2781500.173);Point2D.Double p3 = new Point2D.Double(371596.6543, 2781480.514);Point2D.Double p4 = new Point2D.Double(371578.2719, 2782009.544);Point2D.Double p5 = new Point2D.Double(371762.843, 2782147.181);
System.out.println("P1到P2的距離: " + p1.distance(p2));System.out.println("P2到P3的距離: " + p2.distance(p3));System.out.println("P3到P4的距離: " + p3.distance(p4));System.out.println("P4到P5的距離: " + p4.distance(p5));
sum = p1.distance(p2) + p2.distance(p3) + p3.distance(p4) + p4.distance(p5);System.out.println("總距離為: " + sum);
}
}