import java.awt.*; public class FirstCanvas { Frame f1; Label l1; Panel p1; FirstCanvas() { f1 = new Frame("FirstCanvas.java"); f1.setSize(420, 420); f1.setLayout(new GridLayout(3, 1)); l1 = new Label(); p1 = new Panel(); f1.add(l1); f1.add(p1); l1.setText("Canvas"); Canvas c = new Canvas(); c.setSize(69, 69); c.setBackground(Color.GRAY); // f1.add(c); p1.add(c); f1.setVisible(true); } public static void main(String[] args) { FirstCanvas canvas = new FirstCanvas(); } }