import javax.swing.JFrame; public class Game1 { public static void main(String[] args) { JFrame frame = new JFrame("Mini Tennis"); frame.setSize(1000, 1000); frame.setVisible(true); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); /** * Re-locating position of x,y * (0,0) in C-application= (0,1000) in java application * (x,y) in C-application= (x, 1000-y) in java application. */ } }