What technique is used to generate a random position for the ball while keeping it on screen?

Using Randomizer.nextInt with adjusted coordinates is a reliable technique for generating a random position for the ball while ensuring it stays within the screen boundaries. This method allows you to specify a range for the X and Y coordinates, ensuring that the generated random value will always fall within the limits of the visible area.

For instance, if the screen width is 800 pixels and the height is 600 pixels, you can use Randomizer.nextInt to generate an X coordinate between 0 and 800, and a Y coordinate between 0 and 600. However, if the ball has a defined radius, you would adjust these coordinates accordingly to prevent the ball from appearing partially off-screen.

By applying these adjustments, you ensure that the center of the ball remains visible on the screen, which is crucial for maintaining a good user experience in animations and games. This direct control over the coordinates makes this method not only effective but also flexible for various screen sizes and ball dimensions.