java lwjgl how to resize a rectangle object

We can use the equals() method with an object of our own. We should note that we can pass a null object as the argument of the method, but of course, not as the object we call the method upon. The method still returns true when both objects are the same. In case the angle is negative, the rotation is counterclockwise. If the angle is positive, the rotation is clockwise. Here is the syntax of the rotate () method: The rotate () method accepts a rotation angle in radians. Example code: the following code creates a rectangle with 20 pixel rounded corners. Rounded corners can be specified by setting both of the arcWidth and arcHeight properties to positive values (> 0.0). By default the rectangle has sharp corners. One oddity of this is that the Canvas must have a non- null background to. The Rectangle class defines a rectangle with the specified size and location.

The program catches the Canvas object’s MouseDown, MouseMove, and MouseUp events. The program’s XAML code defines a Canvas object that contains the Rectangle. The rotate () method allows you to rotate a drawing object on the canvas. This example shows how you can let the user move and resize a Rectangle object at run time in a WPF program.

Memory stored in the heap cannot be accessed by native code (JNI, the mechanism that allows calling native code from Java does not allow that). The heap is a large bunch of memory reserved in the JVM's process memory. However, we can override this method in order to define what equality means for our objects.įirst, let's see how it behaves for existing objects like Integer: Integer a = new Integer(1) The rotate () is a method of the 2D drawing context. Remember, that Java objects, are allocated in a space called the heap.

By default, its implementation compares object memory addresses, so it works the same as the = operator. This method is defined in the Object class so that every Java object inherits it.

Java lwjgl how to resize a rectangle object