Data update

Task/Play-recorded-sounds/Java/play-recorded-sounds.java

@@ -0,0 +1,142 @@
+import java.io.File;
+import java.io.IOException;
+import java.util.Scanner;
+
+import javax.sound.sampled.AudioInputStream;
+import javax.sound.sampled.AudioSystem;
+import javax.sound.sampled.Clip;
+import javax.sound.sampled.LineUnavailableException;
+import javax.sound.sampled.UnsupportedAudioFileException;
+
+public final class PlayRecordedSounds {
+
+	public static void main(String[] aArgs) {
+		PlayRecordedSounds soundPlayer = new PlayRecordedSounds();			
+		soundPlayer.play();
+		
+		scanner = new Scanner(System.in); 			
+		int choice = 0;
+		while ( choice != 6 ) {
+			System.out.println("1. Pause");
+			System.out.println("2. Resume");
+			System.out.println("3. Restart");
+			System.out.println("4. Jump to specific time");
+			System.out.println("5. Stop");
+			System.out.println("6. Quit the program");
+			
+			choice = scanner.nextInt();
+			soundPlayer.select(choice);
+		}
+		scanner.close();
+	}
+	
+	private enum Status { PLAYING, PAUSED, STOPPED }
+
+	private PlayRecordedSounds() {
+		resetAudioStream();
+	} 	
+	
+	private void select(int aChoice) {
+		switch ( aChoice ) {
+			case 1 -> pause();
+			case 2 -> resume();
+			case 3 -> restart();
+			case 4 -> jump();
+			case 5 -> stop();
+			case 6 -> quit();
+			default -> { /* Take no action */ }	
+		} 	
+	}
+	
+	private void play() {		
+		status = Status.PLAYING;
+		clip.start();
+	}
+	
+	private void pause() {
+		if ( status == Status.PAUSED ) {
+			System.out.println("The audio is already paused");
+			return;
+		}
+		
+		currentClipPosition = clip.getMicrosecondPosition();
+		clip.stop();
+		status = Status.PAUSED;
+	}
+	
+	private void resume() {
+		if ( status == Status.PLAYING ) {
+			System.out.println("The audio is already being played");
+			return;
+		}
+		
+		clip.close();
+		resetAudioStream();
+		clip.setMicrosecondPosition(currentClipPosition);
+		status = Status.PLAYING;
+		play();
+	}
+	
+	private void restart() {		
+		clip.stop();
+		clip.close();
+		resetAudioStream();
+		currentClipPosition = 0;
+		clip.setMicrosecondPosition(currentClipPosition);
+		status = Status.PLAYING;
+		play();
+	}
+	
+	private void jump() {	
+		System.out.println("Select a time between 0 and " + clip.getMicrosecondLength());
+		final long request = scanner.nextLong();	
+		
+		if ( request > 0 && request < clip.getMicrosecondLength() ) {
+			clip.stop();
+			clip.close();
+			resetAudioStream();
+			currentClipPosition = request;
+			clip.setMicrosecondPosition(currentClipPosition);
+			status = Status.PLAYING;
+			play();
+		}
+	}
+	
+	private void stop() {
+		currentClipPosition = 0;
+		clip.stop();
+		clip.close();
+		status = Status.STOPPED;
+	}
+	
+	private void quit() {
+		try {
+			scanner.close();
+			clip.close();
+			audioStream.close();
+			Runtime.getRuntime().exit(0);
+		} catch (IOException ioe) {
+			ioe.printStackTrace(System.err);
+		}
+	}
+	
+	private void resetAudioStream() {
+		try {
+			audioStream = AudioSystem.getAudioInputStream( new File(FILE_PATH) );
+			clip = AudioSystem.getClip();
+			clip.open(audioStream);
+			clip.loop(Clip.LOOP_CONTINUOUSLY);
+		} catch (UnsupportedAudioFileException | IOException | LineUnavailableException exception) {
+			exception.printStackTrace(System.err);
+		}		
+	} 	
+
+	private static Scanner scanner;
+	private static Clip clip;
+	private static long currentClipPosition;
+	private static Status status;
+	private static AudioInputStream audioStream;
+	
+	private static final String FILE_PATH = "./test_piece.wav";
+	
+}