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Testing your Java...
We use MP3 audio files in some lessons. Press the play button below to test your sound.
If you can't hear the audio
make sure you're speakers or headphones are not "MUTED". Ask a friend to help you.
We use MP4 and WebM video with audio in some lessons. Press the play button below to test your video.
If you can't view the video make sure you're browser or device can display MP4 video.
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Ask a friend to help you.