Question

 public void actionPerformed(ActionEvent evt) {// handle button event

        Object source = evt.getSource();
        String k = evt.getActionCommand();
        jTextArea1.append(k);
    }

i have the code above and an error at jTextArea1.append(k);. The error am getting is

cannot find symbol symbol: method
append(java.lang.String) location:
variable txtArea of type
javax.swing.JTextField

if i use jTextArea1.settext(k); , it works but i want to append text the existing

Answer 1

According to the error message, the jTextArea1 is actually a JTextField.

Try

jTextArea1.setText(jTextArea1.getText() + k);