import java.io.*; class TestFile { public static void main(String[] argv) throws IOException { FileOutputStream fileTest = new FileOutputStream("binaire.bin"); BufferedOutputStream bufferTest = new BufferedOutputStream(fileTest); DataOutputStream dataTest = new DataOutputStream(bufferTest); dataTest.writeUTF("bonjour"); dataTest.writeInt(3); dataTest.writeLong(100000); dataTest.writeFloat((float)2.0); dataTest.writeDouble(3.5); dataTest.writeChar('a'); dataTest.writeBoolean(false); dataTest.writeUTF("au revoir"); System.out.println(dataTest.size()); dataTest.close(); } }