好的,所以我已经编写了大部分程序,可以让我确定两个圆圈是否重叠。
除了一个问题之外,我的程序没有任何问题:程序不会接受我为两个中心点之间的距离编写的代码。我可以找出 if/else 逻辑来告诉用户稍后会根据距离的值发生什么,但我想知道现在出了什么问题。我正在编写的程序 Eclipse 告诉我应该将距离解析为一个数组,但我已经告诉过你它是一个整数。
这是我的代码:
package circles;
import java.util.Scanner;
public class MathCircles {
// variable for the distance between the circles' centers
public static int distance;
// variable for the lengths of the radii combined
public static int radii;
public static void main(String[] args) {
// Get the x-value of the center of circle one
System.out.println("What is the x-coordinate for the center of circle one?");
Scanner keyboard = new Scanner(System.in);
int x1 = keyboard.nextInt();
//Get the y-value of the center of circle one
System.out.println("What is the y-coordinate for the center of circle one?");
Scanner keyboard1 = new Scanner(System.in);
int y1 = keyboard1.nextInt();
//Get the radius length of circle one.
System.out.println("How long is circle one's radius?");
Scanner keyboard2 = new Scanner(System.in);
int r1 = keyboard2.nextInt();
// Get the x-value of the center of circle two.
System.out.println("What is the x-coordinate for the center of circle two?");
Scanner keyboard3 = new Scanner(System.in);
int x2 = keyboard3.nextInt();
//Get the y-value of the center of circle two.
System.out.println("What is the y-coordinate for the center of circle two?");
Scanner keyboard4 = new Scanner(System.in);
int y2 = keyboard4.nextInt();
//Get the radius length of circle two.
System.out.println("How long is circle two's radius?");
Scanner keyboard5 = new Scanner(System.in);
int r2 = keyboard5.nextInt();
/*
* OK, so now I have the location of the two circles' centers,
* as well as the lengths of their radii.
* The circles are intersecting IF THE DISTANCE BETWEEN THE TWO CENTERS
* IS EQUAL TO OR LESS THAN THE COMBINED LENGTHS OF THE RADII.
* Now I need to get some math done.
*/
//calculate the combined lengths of the radii
radii = r1 + r2;
//calculate the distance
distance = Math.sqrt((x1-x2)(x1-x2) + (y1-y2)(y1-y2));
}
}