File Input Output Java

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import java.io.DataOutputStream;
import java.io.FileOutputStream;
class DataOutputStreamDemo {
  public static void main(String args[]) throws Exception {
    FileOutputStream fos = new FileOutputStream(args[0]);
    DataOutputStream dos = new DataOutputStream(fos);
    // Write various types of data
    dos.writeBoolean(false);
    dos.writeByte(Byte.MAX_VALUE);
    dos.writeChar('A');
    dos.writeDouble(Double.MAX_VALUE);
    dos.writeFloat(Float.MAX_VALUE);
    dos.writeInt(Integer.MAX_VALUE);
    dos.writeLong(Long.MAX_VALUE);
    dos.writeShort(Short.MAX_VALUE);
    fos.close();
  }
}