Java是一種廣泛使用的編程語言，它具有很強的可移植性和跨平臺性。在Java中，橋接模式和適配器模式都是非常有用的設計模式。

橋接模式允許將抽象和實現分離開來，使它們可以獨立地變化。它包括一個抽象部分和一個實現部分。抽象部分定義了高層次的接口，而實現部分則提供具體實現。橋接模式的目的是將兩部分解耦，從而使它們可以獨立地變化。

public abstract class Shape {
protected Color color;
public Shape(Color color) {
this.color = color;
}
abstract void draw();
}
public class Circle extends Shape {
public Circle(Color color) {
super(color);
}
void draw() {
System.out.println("Draw circle with " + color);
}
}
public interface Color {
void fill();
}
public class Red implements Color {
void fill() {
System.out.println("Fill with red");
}
}
public class Blue implements Color {
void fill() {
System.out.println("Fill with blue");
}
}
public static void main(String[] args) {
Color red = new Red();
Shape circle = new Circle(red);
circle.draw();
}

適配器模式用于將一個類的接口轉換為另一個類可以使用的接口。這是在兩個不兼容的接口之間進行橋接的一種方法。適配器模式有兩種：類適配器和對象適配器。類適配器使用多重繼承來適配接口，而對象適配器使用組合來適配接口。

public interface MediaPlayer {
void play(String mediaType, String fileName);
}
public interface AdvancedMediaPlayer {
void playVlc(String fileName);
void playMp4(String fileName);
}
public class VlcPlayer implements AdvancedMediaPlayer {
void playVlc(String fileName) {
System.out.println("Playing vlc file: " + fileName);
}
void playMp4(String fileName) {}
}
public class Mp4Player implements AdvancedMediaPlayer {
void playVlc(String fileName) {}
void playMp4(String fileName) {
System.out.println("Playing mp4 file: " + fileName);
}
}
public class MediaAdapter implements MediaPlayer{
AdvancedMediaPlayer advancedMediaPlayer;
void play(String mediaType, String fileName) {
if(mediaType.equalsIgnoreCase("vlc")) {
advancedMediaPlayer = new VlcPlayer();
advancedMediaPlayer.playVlc(fileName);
} else if (mediaType.equalsIgnoreCase("mp4")) {
advancedMediaPlayer = new Mp4Player();
advancedMediaPlayer.playMp4(fileName);
}
}
}
public class AudioPlayer implements MediaPlayer {
MediaAdapter mediaAdapter;
void play(String mediaType, String fileName) {
if(mediaType.equalsIgnoreCase("mp3")) {
System.out.println("Playing mp3 file: " + fileName); 
} else if(mediaType.equalsIgnoreCase("vlc") || mediaType.equalsIgnoreCase("mp4")) {
mediaAdapter = new MediaAdapter();
mediaAdapter.play(mediaType, fileName);
} else {
System.out.println("Invalid media type");
}
}
}
public static void main(String[] args) {
MediaPlayer audioPlayer = new AudioPlayer();
audioPlayer.play("mp3", "mp3File.mp3");
audioPlayer.play("mp4", "mp4File.mp4");
audioPlayer.play("vlc", "vlcFile.vlc");
audioPlayer.play("mp5", "mp5File.mp5");
}

綜上所述，橋接模式和適配器模式都是非常有用的設計模式，可以幫助我們解決許多實際問題。