Question

in JOption pane I have some JTextArea where user must eneter some text. Then if user click OK code execute. But i want that code will not execute if input text is not enetered.

I am using mouse listener to check OK button but i do not know how to reopen JOption if input text is not enetered and let him go to next step if is text enetered.

my code:

    case JOptionPane.YES_OPTION:  {

        String text= op.getText();
        if (text.equals("")) {
            // how to prevent closing joptionpane!
        } else {
            // my code
            break;
        }
    }

Answer 1

JTextArea txt = new JTextArea();
JButton ok = new JButton("OK");

ok.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                if (txt.getText().toString().trim().length() == 0 ) {
                }
                else {
                    //your action...
                }
            }
        });