Add all 23 GoF design pattern implementations

02-structural/bridge/AdvancedRemote.java

@@ -0,0 +1,21 @@
+package bridge;
+/**
+ * Refined Abstraction — extends RemoteControl with additional capabilities.
+ *
+ * The device hierarchy doesn't change at all. TV and Radio
+ * automatically support mute() and jumpToChannel() because they
+ * implement Device. Zero new code on the implementation side.
+ */
+public class AdvancedRemote extends RemoteControl {
+    public AdvancedRemote(Device device) {
+        super(device);
+    }
+    public void mute() {
+        System.out.println("  Muting " + device.getName());
+        device.setVolume(0);
+    }
+    public void jumpToChannel(int channel) {
+        System.out.println("  Jumping to channel " + channel);
+        device.setChannel(channel);
+    }
+}