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BAEL-5417 - implements vs extends (eugenp#12011)
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‎core-java-modules/core-java-lang-4/src/main/java/com/baeldung/implementsvsextends/Main.java‎

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package com.baeldung.implementsvsextends;
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import com.baeldung.implementsvsextends.media.model.AudioMedia;
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import com.baeldung.implementsvsextends.media.model.Media;
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import com.baeldung.implementsvsextends.media.model.VideoMedia;
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import com.baeldung.implementsvsextends.media.player.impl.AudioMediaPlayer;
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import com.baeldung.implementsvsextends.media.player.impl.CustomMediaPlayer;
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import com.baeldung.implementsvsextends.media.player.impl.MultiMediaPlayer;
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import com.baeldung.implementsvsextends.media.player.impl.VideoMediaPlayer;
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public class Main {
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public static void main(String[] args) {
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Media media = new Media();
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media.setId(001);
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media.setTitle("Media1");
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media.setArtist("Artist001");
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AudioMedia audioMedia = new AudioMedia();
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audioMedia.setId(101);
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audioMedia.setTitle("Audio1");
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audioMedia.setArtist("Artist101");
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audioMedia.setBitrate(3500);
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audioMedia.setFrequency("256kbps");
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VideoMedia videoMedia = new VideoMedia();
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videoMedia.setId(201);
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videoMedia.setTitle("Video1");
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videoMedia.setArtist("Artist201");
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videoMedia.setResolution("1024x768");
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videoMedia.setAspectRatio("16:9");
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System.out.println(media);
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System.out.println(audioMedia);
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System.out.println(videoMedia);
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AudioMediaPlayer audioMediaPlayer = new AudioMediaPlayer();
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audioMediaPlayer.play();
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audioMediaPlayer.pause();
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VideoMediaPlayer videoMediaPlayer = new VideoMediaPlayer();
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videoMediaPlayer.play();
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videoMediaPlayer.pause();
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MultiMediaPlayer multiMediaPlayer = new MultiMediaPlayer();
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multiMediaPlayer.play();
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multiMediaPlayer.pause();
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multiMediaPlayer.seek();
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multiMediaPlayer.fastForward();
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CustomMediaPlayer customMediaPlayer = new CustomMediaPlayer();
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customMediaPlayer.play();
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customMediaPlayer.pause();
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customMediaPlayer.setId(301);
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customMediaPlayer.setTitle("Custom1");
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customMediaPlayer.setArtist("Artist301");
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System.out.println(customMediaPlayer);
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}
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}

‎core-java-modules/core-java-lang-4/src/main/java/com/baeldung/implementsvsextends/media/model/AudioMedia.java‎

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package com.baeldung.implementsvsextends.media.model;
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public class AudioMedia extends Media {
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private int bitrate;
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private String frequency;
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@Override
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public void printTitle() {
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System.out.println("AudioMedia Title");
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}
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public int getBitrate() {
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return bitrate;
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}
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public void setBitrate(int bitrate) {
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this.bitrate = bitrate;
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}
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public String getFrequency() {
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return frequency;
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}
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public void setFrequency(String frequency) {
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this.frequency = frequency;
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}
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@Override
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public String toString() {
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return "AudioMedia{" +
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"id=" + this.getId() +
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", title='" + this.getTitle() + '\'' +
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", artist='" + this.getArtist() + '\'' +
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", bitrate=" + bitrate +
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", frequency='" + frequency + '\'' +
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"} ";
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}
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}

‎core-java-modules/core-java-lang-4/src/main/java/com/baeldung/implementsvsextends/media/model/Media.java‎

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package com.baeldung.implementsvsextends.media.model;
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public class Media {
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private int id;
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private String title;
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private String artist;
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public void printTitle() {
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System.out.println("Media Title");
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}
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public int getId() {
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return id;
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}
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public void setId(int id) {
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this.id = id;
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}
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public String getTitle() {
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return title;
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}
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public void setTitle(String title) {
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this.title = title;
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}
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public String getArtist() {
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return artist;
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}
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public void setArtist(String artist) {
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this.artist = artist;
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}
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@Override
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public String toString() {
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return "Media{" +
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"id=" + id +
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", title='" + title + '\'' +
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", artist='" + artist + '\'' +
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'}';
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}
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}

‎core-java-modules/core-java-lang-4/src/main/java/com/baeldung/implementsvsextends/media/model/VideoMedia.java‎

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package com.baeldung.implementsvsextends.media.model;
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public class VideoMedia extends Media {
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private String resolution;
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private String aspectRatio;
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public String getResolution() {
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return resolution;
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}
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public void setResolution(String resolution) {
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this.resolution = resolution;
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}
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public String getAspectRatio() {
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return aspectRatio;
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}
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public void setAspectRatio(String aspectRatio) {
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this.aspectRatio = aspectRatio;
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}
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@Override
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public String toString() {
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return "VideoMedia{" +
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"id=" + this.getId() +
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", title='" + this.getTitle() + '\'' +
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", artist='" + this.getArtist() + '\'' +
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"resolution='" + resolution + '\'' +
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", aspectRatio='" + aspectRatio + '\'' +
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"} ";
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}
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}

‎core-java-modules/core-java-lang-4/src/main/java/com/baeldung/implementsvsextends/media/player/AdvancedPlayerOptions.java‎

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package com.baeldung.implementsvsextends.media.player;
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public interface AdvancedPlayerOptions {
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void seek();
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void fastForward();
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}

‎core-java-modules/core-java-lang-4/src/main/java/com/baeldung/implementsvsextends/media/player/MediaPlayer.java‎

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package com.baeldung.implementsvsextends.media.player;
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public interface MediaPlayer {
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void play();
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void pause();
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}

‎core-java-modules/core-java-lang-4/src/main/java/com/baeldung/implementsvsextends/media/player/impl/AudioMediaPlayer.java‎

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package com.baeldung.implementsvsextends.media.player.impl;
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import com.baeldung.implementsvsextends.media.player.MediaPlayer;
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public class AudioMediaPlayer implements MediaPlayer {
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@Override
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public void play() {
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System.out.println("AudioMediaPlayer is Playing");
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}
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@Override
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public void pause() {
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System.out.println("AudioMediaPlayer is Paused");
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}
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}

‎core-java-modules/core-java-lang-4/src/main/java/com/baeldung/implementsvsextends/media/player/impl/CustomMediaPlayer.java‎

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package com.baeldung.implementsvsextends.media.player.impl;
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import com.baeldung.implementsvsextends.media.model.Media;
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import com.baeldung.implementsvsextends.media.player.MediaPlayer;
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public class CustomMediaPlayer extends Media implements MediaPlayer {
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@Override
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public void play() {
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System.out.println("CustomMediaPlayer is Playing");
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}
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@Override
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public void pause() {
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System.out.println("CustomMediaPlayer is Paused");
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}
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}

‎core-java-modules/core-java-lang-4/src/main/java/com/baeldung/implementsvsextends/media/player/impl/MultiMediaPlayer.java‎

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package com.baeldung.implementsvsextends.media.player.impl;
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import com.baeldung.implementsvsextends.media.player.AdvancedPlayerOptions;
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import com.baeldung.implementsvsextends.media.player.MediaPlayer;
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public class MultiMediaPlayer implements MediaPlayer, AdvancedPlayerOptions {
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@Override
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public void play() {
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System.out.println("MultiMediaPlayer is Playing");
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}
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@Override
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public void pause() {
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System.out.println("MultiMediaPlayer is Paused");
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}
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@Override
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public void seek() {
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System.out.println("MultiMediaPlayer is being seeked");
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}
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@Override
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public void fastForward() {
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System.out.println("MultiMediaPlayer is being fast forwarded");
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}
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}

‎core-java-modules/core-java-lang-4/src/main/java/com/baeldung/implementsvsextends/media/player/impl/VideoMediaPlayer.java‎

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package com.baeldung.implementsvsextends.media.player.impl;
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import com.baeldung.implementsvsextends.media.player.MediaPlayer;
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public class VideoMediaPlayer implements MediaPlayer {
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@Override
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public void play() {
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System.out.println("VideoMediaPlayer is Playing");
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}
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@Override
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public void pause() {
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System.out.println("VideoMediaPlayer is Paused");
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}
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}

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