I'm trying to sum up 2 buttons to give a total.

When i drag 1 buttons onto another, both buttons add up to give a total. Help

This is how i Add up my buttons, and I've added them into an ArrayList, but I have a hard time reaching a button in the Array list.

for(int i = 0; i < tabChar.length; i++){

JButton btnNewButton = new JButton(String.valueOf(tabChar));
buttons.add(i,btnNewButton);
btnNewButton.setFont(new Font("Arial", Font.PLAIN, 40));
GridBagConstraints gbc_btnNewButton = new GridBagConstraints();
gbc_btnNewButton.insets = new Insets(0, 1, 70, 6);
gbc_btnNewButton.gridx = i;
gbc_btnNewButton.gridy = 0;
gbc_btnNewButton.weightx = 1;
btnNewButton.setPreferredSize(dimension);
btnNewButton.setOpaque(true);
btnNewButton.setBackground(Color.WHITE);
frame.getContentPane().add(btnNewButton, gbc_btnNewButton);
btnNewButton.addMouseListener(new MouseListener() {

Here is where i Would want the mouse drag. For each button, if i use mouse drag and drag it onto another button, they sum up

what do you mean by this? you're not sure how to access the elements? your arraylist is not in scope?



i dont have any experience with java drag+drop. a quick google search has an example that should give you a starting point:
http://stackoverflow.com/questions/28844574/drag-and-drop-from-jbutton-to-jcomponent-in-java



instead of replacing the text, have it add.

I had help from my cousin, its settled, thanks though