计算机17-3,4作业C

Posted 2020-11-03 1kasshole

C.Class Degisn

Description

定义一个Circle类，有成员变量（或称之为域）x，y（圆心坐标）r（圆半径），成员方法intersect（）两个圆是否相交的判断方法，和所需要的若干个构造方法。

Input

两个Circle类的成员变量值

Output

若交叉输出intersected，否则输出not intersected

Sample Input

10 10 5 60 60 5

 1 import java.util.*;
 2 public class Main{
 3     public static void main(String[] args){
 4         Scanner in = new Scanner(System.in);
 5         double x1,y1,r1,x2,y2,r2;
 6         x1 = in.nextDouble(); y1 = in.nextDouble(); r1 = in.nextDouble();
 7         x2 = in.nextDouble(); y2 = in.nextDouble(); r2 = in.nextDouble();
 8         Circle c1 = new Circle(x1,y1,r1);
 9         Circle c2 = new Circle(x2,y2,r2);
10         if(c1.intersect(c2))
11             System.out.println("intersected");
12         else
13             System.out.println("not intersected");
14     }
15 }
16 
17 class Circle{
18     private double x;
19     private double y;
20     private double radium;
21     public Circle(double x,double y,double radium){
22         this.x=x; this.y=y; this.radium=radium;
23     }
24     public boolean intersect(Circle c){
25         double dis = Math.sqrt((c.x-x)*(c.x-x)+(c.y-y)*(c.y-y));
26         return dis <= radium + c.radium;
27     }
28 }