package game.project; import java.awt.Color; import java.awt.Graphics; import java.awt.Graphics2D; import javax.swing.JPanel; public class MainRenderHandler extends JPanel { private static final long serialVersionUID = 1L; public void paintComponent(Graphics Gr) { super.paintComponent(Gr); Graphics2D G2 = (Graphics2D) Gr; G2.setColor(Color.BLACK); G2.drawRect(0,0,500,500); } public void repaint(){ paintComponent(null); } public MainRenderHandler(){ repaint(); } }