How come I can't writeUTF to RMS?

Question

I am developing an app using J2ME. The project is to store integer and string data into RMS.

The error shows that out.writeUTF(i.getNumberPlate()); is not working.

So any solution to solve this problem? The compiler cant even compile the project.

public class CarparkReservationParser {
    public static byte[] parseObj(CarparkReservation i) {
        ByteArrayOutputStream baos = new ByteArrayOutputStream();
        DataOutputStream out;

        try {

            out = new DataOutputStream(baos);

            // write into string
            out.writeInt(i.getCarpark());
            out.writeUTF(i.getNumberPlate());
            out.writeUTF(i.getStudentID());
            out.writeUTF(i.getName());
            out.writeInt(i.getYear());
            out.writeInt(i.getMonth());

            // baos.toByteArray();
        } catch (IOException e) {
        }

        // convert to byte array
        return baos.toByteArray();

    }
}

It would probably help if you told us what errors the compiler gives. — mr_lou, Jul 08 '15 at 16:12
Take a look at the return type of `getNumberPlate()`—it may not return a `String`, which is the type that `writeUTF` requires. — Jack, Jul 08 '15 at 20:12

score 0 · Answer 1 · answered Jul 09 '15 at 10:16

0

@jack's comment is right. writeUTF receives a String as parameter. If getNumberPlate() does not return a String you must change your code. For example:

out.writeUTF(i.getNumberPlate().toString());

answered Jul 09 '15 at 10:16

Telmo Pimentel Mota

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How come I can't writeUTF to RMS?

1 Answers1