Complete the following code to test whether two circles, each having a user-defined radius and a fixed center point lying along the same horizontal line, are disjoint, overlapping, or mutually contained. Consider how you would do it manually first.
```java import java.util.Scanner;
public class CircleOverlap { public static void main(String[] args) { Scanner in = new Scanner(System.in); System.out.print("Input the radius of the first circle: "); double radius1 = in.nextDouble(); double xcenter1 = 0; double ycenter1 = 0; System.out.print("Input the radius of the second circle: "); double radius2 = in.nextDouble(); double xcenter2 = 40; double ycenter2 = 0; // Your work goes here } } ```