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I am having trouble adding JComponents to a JDialog when the user clicks a button on the JDialog. Basically I want it to look like this: Then, when the user clicks "Add New Field" I want it to look like this: I cannot seem to get the dialog to add the new JLabel or JTextField. Can anyone point me in the right direction? EDIT : This is the action for the "Add New Field" button (Just trying a label now). @Action public void addNewField() { Container contentPane = getContentPane(); JLabel label = new JLabel ("welkom"); contentPane.add(label, BorderLayout.CENTER); } SOLUTION : I used mre's solution and got it to work. Here is my final function: @Action public void addNewField() { System.out.println("New Field..."); Container contentPane = getContentPane(); JLabel label = new JLabel ("welcome"); label.setBounds(10,10,100,10); //some random value that I know is in my dialog contentPane.add(label); contentPane.validate(); contentPane.repaint(); this.pack(); } Another one of my problems is that I am using a "Free Design" layout in NetBeans, which meant that my label was probably in some weird position rather than being in the bounds of my dialog (just a guess). I solved this problem with label.setBounds() so that it showed exactly where I wanted it to.

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