do{ // beginning of 'do-while' loop rectAcreate(xCordA, yCordA, widthA, heightA); //creating rectangles A & B rectBcreate(xCordB, yCordB, widthB, heightB); // doesRectIntersPointorNotInters(rectA, rectB); //check to see if the rectangles do not intersect or if they intersect at point if (rectInterAtPoint == true) System.out.println("The rectangles intersect at the following point: " + pointIntersect); else rectInterAtPoint = false; if (rectDoesNotIntersect == true) System.out.println("The rectangles do not intersect."); else rectDoesNotIntersect = false; if ((rectInterAtPoint == false) && (rectDoesNotIntersect == false)) rectIntersect(rectA, rectB); //calculating/printing the intersection rectUnion(rectA, rectB); // calculating/printing the union keepGoing = false; System.out.print("Do you want to study two more rectangles>"); // *** here is the problem, don't know why can't input String response = scan.nextLine(); // wtf?? if (response.startsWith("y")) { keepGoing = true; } if (response.startsWith("y")) { keepGoing = true; } }while(keepGoing == true);

Here is program output:

Quote

Please enter the x coordinate of the upper left corner>10

Please enter the y coordinate of the upper left corner>10

Please enter the x coordinate of the lower right corner>15

Please enter the y coordinate of the lower right corner>15

Please enter the x coordinate of the upper left corner>12

Please enter the y coordinate of the upper left corner>12

Please enter the x coordinate of the lower right corner>20

Please enter the y coordinate of the lower right corner>20

The intersection of these two rectangles is the rectangle: java.awt.Rectangle[x=12,y=12,width=13,height=13]

The union of these two rectangles is the rectangle: java.awt.Rectangle[x=10,y=10,width=22,height=22]

Do you want to study two more rectangles>

Please enter the y coordinate of the upper left corner>10

Please enter the x coordinate of the lower right corner>15

Please enter the y coordinate of the lower right corner>15

Please enter the x coordinate of the upper left corner>12

Please enter the y coordinate of the upper left corner>12

Please enter the x coordinate of the lower right corner>20

Please enter the y coordinate of the lower right corner>20

The intersection of these two rectangles is the rectangle: java.awt.Rectangle[x=12,y=12,width=13,height=13]

The union of these two rectangles is the rectangle: java.awt.Rectangle[x=10,y=10,width=22,height=22]

Do you want to study two more rectangles>

at this line:

Quote

Do you want to study two more rectangles>

The console will not accept my input.

I don't see the problem.