drag and drop word to match image

**Norm** · February 14th, 2014, 09:00 PM

can i get an example of some sort

Look at the code in post#11.
Where does it get the String it appends to the currently displayed Strings?
There are several references to a reject method. Add code to call the reject method if the String that is received is the one to be rejected. Otherwise do the append as the code currently does.

**stresstedout** · February 14th, 2014, 09:09 PM

i dont get it.. im confused

**Norm** · February 14th, 2014, 09:27 PM

Which part don't you understand? I'll list them one at a time so that you don't confuse them:
Where does the target class object get the dragged String from?

**stresstedout** · February 14th, 2014, 09:59 PM

Originally Posted by Norm

Which part don't you understand? I'll list them one at a time so that you don't confuse them:
Where does the target class object get the dragged String from?

DraggableLabel

**Norm** · February 15th, 2014, 06:53 AM

How does the DropTargetTextArea class get the String that was dropped on it?

**GregBrannon** · February 15th, 2014, 09:38 AM

This has become much more painful than it needs to be. I suggest you do this:

Edit: Oops, I forgot to mention the starting point: the code at post #11.

1. Update the existing code to use Swing components, JTextArea, JLabel, etc. While the code you have may ultimately work (not sure), the recommendation is to use Swing and then to not mix AWT and Swing components.
2. Add a setPreferredSize() to the DropTargetTextArea in the constructor. I used 200 x 200, but suit yourself.
3. After the code has been updated, copy the existing class DropTargetTextArea and paste it into the Example class at the same level.
4. Rename the pasted code DropTargetJLabel, creating a new class. Modify it to extend JLabel and leave implements DropTargetListener.
5. In the new class, fix the name of the constructor.
6. Update your main() method to:

    public static void main( String[] args )
    {
        // Create the main container and its contents
        JFrame frame = new JFrame( "Test" );
        frame.setDefaultCloseOperation( JFrame.EXIT_ON_CLOSE );
        JPanel panel = new JPanel();
        JTextArea textArea = new DropTargetTextArea();
        JLabel jLabel = new DropTargetJLabel();
 
        JLabel testLabel = new DraggableLabel( "test" );
        JLabel testingLabel = new DraggableLabel( "testing" );
 
        // construct the final GUI
        panel.add( testLabel );
        panel.add( testingLabel );
        frame.add( textArea, BorderLayout.WEST );
        frame.add( jLabel, BorderLayout.EAST );
        frame.add( panel, BorderLayout.SOUTH );
 
        // pack the frame and set it visible
        frame.pack();
        frame.setVisible( true );
    }

7. Update the imports.

Let us know if you have any questions.

In the future, please don't be stymied by "I see red squigglies." They are there to help you move forward, not send you backwards. If you need help with them but don't feel like typing them out, you can hover over them, mouse into the resulting detail, select the text, <CTRL-C> to copy, and then paste the text directly into a post.

Good luck. Let us know if you have remaining questions.

**stresstedout** · February 16th, 2014, 07:52 PM

Originally Posted by Norm

How does the DropTargetTextArea class get the String that was dropped on it?

n

**Norm** · February 16th, 2014, 08:06 PM

Where is there a String in that code?

**stresstedout** · February 16th, 2014, 08:08 PM

Originally Posted by Norm

Where is there a String in that code?

sorry i pasted the wrong code updated it and here is the string

**Norm** · February 16th, 2014, 08:13 PM

Ok, that looks like it.

Now add code to test what is in the String and to either accept it or reject it. The earlier code had two Strings to Drag: "test" and "testing". Chose one to accept and reject the other. Compile and test the code to see if the logic works.

**stresstedout** · February 16th, 2014, 08:32 PM

so at the moment it drags the text and drops in to the label which has been defined near the beginning of the code.

**Norm** · February 16th, 2014, 08:40 PM

Did you change the code to reject one of the Drops? Does it work? The DnD from one label should be accepted and the DnD from the other label rejected.

the label which has been defined

You should use the variable name so there is no confusion.

**stresstedout** · February 16th, 2014, 08:52 PM

not sure how to do this.

**Norm** · February 16th, 2014, 08:56 PM

Look at the code. There are statements to accept and to reject the drop.

Use an if statement to compare the Dropped String against the one to be accepted.

if (String matches) {
   accept
}else{
   reject
}

**stresstedout** · February 16th, 2014, 09:09 PM

 
try {
 
    Transferable transferable = evt.getTransferable();
 
    if (transferable.isDataFlavorSupported(DataFlavor.stringFlavor)) {
 
  evt.acceptDrop(DnDConstants.ACTION_COPY_OR_MOVE);
 
 
}

**Norm** · February 16th, 2014, 09:24 PM

What is that for?

**stresstedout** · February 16th, 2014, 09:25 PM

reject the drop... i dont know what im doing

**Norm** · February 16th, 2014, 09:32 PM

I originally said that DnD was complicated and you said: i know how to do drag and drop
I'd suggest that you study the tutorial on DnD using the link in post#2

**stresstedout** · February 16th, 2014, 09:35 PM

ive only really worked on drag and drop no reject drops.

Please can you explain to me, i dont have much time

**Norm** · February 16th, 2014, 10:11 PM

Look back over the last posts. It's mostly explained there.

I'm done for tonight. I'll be back tomorrow.

**stresstedout** · February 16th, 2014, 11:26 PM

please help me

--- Update ---

please please please please someone help me

**Norm** · February 17th, 2014, 07:14 AM

Choose one of the Strings that are dropped on the target to be accepted. The earlier code had two Strings: "test" and "testng". Write an if statement that tests if the dropped String is the one to be accepted and print out a message: "accepted" if the String matches and print out "rejected" if the String does not match.

**stresstedout** · February 17th, 2014, 12:42 PM

Originally Posted by Norm

Choose one of the Strings that are dropped on the target to be accepted. The earlier code had two Strings: "test" and "testng". Write an if statement that tests if the dropped String is the one to be accepted and print out a message: "accepted" if the String matches and print out "rejected" if the String does not match.

is this correct??? if not please help me

**Norm** · February 17th, 2014, 12:55 PM

Where does the code compare the dropped String against the String that is to be accepted?

**stresstedout** · February 17th, 2014, 01:01 PM

i dont think it does.

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