Update all new Tasks

Task/Munching-squares/Java/munching-squares.java

@@ -0,0 +1,31 @@
+import java.awt.Color;
+import java.awt.Graphics;
+
+import javax.swing.JFrame;
+import javax.swing.JPanel;
+
+public class XorPattern extends JFrame{
+    private JPanel xorPanel;
+
+    public XorPattern(){
+        xorPanel = new JPanel(){
+            @Override
+            public void paint(Graphics g) {
+                for(int y = 0; y < getHeight();y++){
+                    for(int x = 0; x < getWidth();x++){
+                        g.setColor(new Color(0, (x ^ y) % 256, 0));
+                        g.drawLine(x, y, x, y);
+                    }
+                }
+            }
+        };
+        add(xorPanel);
+        setSize(300, 300);
+        setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
+        setVisible(true);
+    }
+
+    public static void main(String[] args){
+        new XorPattern();
+    }
+}