用java语言编写输入两点坐标（X1,Y1）,（X2,Y2）,计算并输出两点间的距离。

import java.util.Scanner;
public class TestObject {
    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        Scanner in = new Scanner(System.in);
        System.out.println("请输入第一个坐标点：");
        int x1 = in.nextInt();
        int y1 = in.nextInt();
        System.out.println("请输入第二个坐标点：");
        int x2 = in.nextInt();
        int y2 = in.nextInt();
        int distance = (int) Math.sqrt(Math.abs((x1 - x2)*(x1 - x2))+Math.abs((y1 - y2)*(y1 - y2)));
        System.out.println("两点间距离是："+distance);
    }
}

#include
#include
int main（）
{
double x1,x2,y1,y2,d;
while(scanf("%lf %lf %lf",&x1,&x2,&y1,&y2)!=EOF)
{
d=(x2-x1)*(x2-x1)+(y2-y1)*(y2-y1);
d=pow(d,0.5);
}
return 0;
}