生成两个在平面中圆的实例,判断两个圆是否相交.doc

JAVA 生成两个在平面中圆的实例，判断两个圆是否相交 //含main类 import java.util.*; public class PYuanWZ{ public static void main(String[] args){ Point p1 = new Point(); Point p2 = new Point(); BanJ r1 = new BanJ(); BanJ r2 = new BanJ(); Distance b = new Distance(); YuanTest Y = new YuanTest(); //设置圆O1的半径 System.out.println(请输入圆O1的半径R1：); Scanner scr1 = new Scanner(System.in); int R1 = scr1.nextInt(); r1.setR(R1); //设置点p1的X坐标 System.out.println(请输入圆O1的x1：); Scanner scx1 = new Scanner(System.in); int x1 = scx1.nextInt(); p1.setX(x1); //设置点p1的Y坐标 System.out.println(请输入圆O1的y1：); Scanner scy1 = new Scanner(System.in); int y1 = scy1.nextInt(); p1.setY(y1); //设置圆O2的半径 System.out.println(请输入圆O2的半径R2：); Scanner scr2 = new Scanner(System.in); int R2 = scr2.nextInt(); r2.setR(R2); //设置点p2的X坐标 System.out.println(请输入圆O2的x2：); Scanner scx2 = new Scanner(System.in); int x2 = scx2.nextInt(); p2.setX(x2); //设置点p2的Y坐标 System.out.println(请输入圆O2的y2：); Scanner scy2 = new Scanner(System.in); int y2 = scy2.nextInt(); p2.setY(y2); //计算两点之间距离 b.setDistance(p1,p2); System.out.println(两个圆圆心之间的距离： + b.getDistance()); Y.setUtil(b,r1,r2); System.out.println(两个圆 + Y.getUtil()); }//main end }//main class end //判断两个圆的位置 class YuanTest{ private String S; public void setUtil(Distance d,BanJ R1,BanJ R2){ if(d.getDistance() (R1.getR() + R2.getR())){ S = 相离; } if(d.getDistance() == (R1.getR()+R2.getR())){ S = 相切; } if(d.getDistance() Math.abs((R1.getR()-R2.getR()))){ S = 内含; } if(d.getDistance() == Math.abs((R1.getR()-R2.getR()))){ S = 内切; } if(d.getDistance() == ((R1.getR()+R2.getR()))){ S = 相交; } } public String getUtil(){ return S; } } //建立(X,Y)坐标 class Point{ private int x; private int y; public void setX(int z){ x = z; } public int getX(){ return x; } public void setY(int x){ y = x;; } p