Convert object to String

[vinnie]

I can't convert an element of an Object array to a String. (the object data is a string). When I use toString() it returns "Ljava.lang.Object;@10b30a7" the part after the @ differs based on the string. Any help will be appreciated. Thanks

[pbrockway2]

I can't convert an element of an Object array to a String. (the object data is a string). When I use toString() it returns "Ljava.lang.Object;@10b30a7"

Could you post the code for this?

[vinnie]

package receiver;

import com.illposed.osc.*;
import java.net.SocketException;
/**
*
* @author Vinnie
*/
public class Main {

/**
* @param args the command line arguments
*/
public static void main(String[] args) throws SocketException {
OSCPortIn receiver = new OSCPortIn(12345);
OSCListener listener = new OSCListener() {
public void acceptMessage(java.util.Date time, OSCMessage message) {

System.out.println(message.getArguments()[0]);
//here is the code to print the string
System.out.println(message.getArguments()[0].toString());
}
};
receiver.addListener("/sayhello", listener);
receiver.startListening();
System.out.println("started");
}

}

[vinnie]

its a program to communicate over a network with open sound control

[Fubarable]

The key class here is the OSCMessage. It obviously doesn't have a toString override, and so you're seeing the default result from the Object class's toString call. The solution: either override the toString method of the OSCMessage class, or call another method of this class (perhaps it has a getMessage() method?) to extract the text you wish to see.

[vinnie]

If I were to override toString(), what would I put inside?

[Fubarable]

If I were to override toString(), what would I put inside?

Simply stated, you would put it inside of the code for class where you want to override this method. Which object is currently giving you a problem? Then that object's class is the one to modify. But the issue comes to fore if you can't modify this class, if it doesn't belong to you. If that's the case, then do my second suggestion.

[pbrockway2]

It's not clear from that code that the elements of the array are strings as you said.

In fact, getArguments() is returning an array whose first element, itself, an array of Objects.

[Edit] Very slow posting this while I checked what an OSCMessage is. The array elements can be "a Float, String, Integer, BigInteger, Boolean or array of these".

[vinnie]

I realize that the object can be an int, float, bool etc. But in my sending app, I am using the first arg as a string all the time.

[pbrockway2]

I don't know anything about your sending app (you didn't post that). I do know that you printed using

System.out.println(message.getArguments()[0].toString());

and that you got the output "Ljava.lang.Object;@10b30a7". That output is not random: it is saying, definitively, that the first element of the array returned by getArguments() is itself an array of Object references. The first element of the array returned by getArguments() is not a string.

You might want to take that array - message.getArguments()[0] - and print out its elements to see what they are.

[pbrockway2]

Just a guess, but maybe getArguments() is returning an array all of whose elements are arrays of the valid types. With some of them being one element arrays.

In that case try

public class Main {
    public static void main(String[] args) throws SocketException {
        OSCPortIn receiver = new OSCPortIn(12345);
        OSCListener listener = new OSCListener() {
            public void acceptMessage(java.util.Date time, OSCMessage message) {
                Object[] arg = (Object[])(message.getArguments()[0]);
                System.out.println(arg[0]);
            }
        };
        receiver.addListener("/sayhello", listener);
        receiver.startListening();
        System.out.println("started");
    }
}