Program using NullOutputStream Class in java

Program using NullOutputStream Class in java

package com.elharo.io;

import java.io.*;

public class NullOutputStream extends OutputStream {

private boolean closed = false;

public void write(int b) throws IOException {
if (closed) throw new IOException("Write to closed stream");
}

public void write(byte[] data, int offset, int length)
throws IOException {
if (data == null) throw new NullPointerException("data is null");
if (closed) throw new IOException("Write to closed stream");
}

public void close() {
closed = true;
}
}