Java tutorial
import java.io.BufferedOutputStream; import java.io.DataOutputStream; import java.io.FileOutputStream; public class Main { public static void main(String[] argv) throws Exception { FileOutputStream fileOut = new FileOutputStream("data.txt"); BufferedOutputStream buffer = new BufferedOutputStream(fileOut); DataOutputStream dataOut = new DataOutputStream(buffer); dataOut.writeUTF("Hello!"); dataOut.writeInt(4); dataOut.writeDouble(100.0); dataOut.close(); buffer.close(); fileOut.close(); } }