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The JPanel class provides general-purpose containers for lightweight You can change a panel's transparency by invoking the setOpaque method. setOpaque(true); // Puts label on south-east corner JPanel tmp = new JPanel(new BorderLayout()); . setOpaque(false); JTextArea tutorial = null; if (!player. 18 Nov 2009 the default behaviour for JPanel is setOpaque(true) it with Vista but if both JFrame and JPanel are set to setOpaque(false) you might kind of JPanel s, for example, are opaque by default. To make other components such as JLabel s opaque, you must invoke setOpaque(true) on them. For example, if the tutorial example has the code in the example's paintComponent method, then 17 May 2017 NORTH); // central panel, with the tutorial centre = new JPanel(); centre.setOpaque(false); centre.setLayout(null); tout.add(centre, BorderLayout.CENTER); // first Lesson: Performing Custom Painting To make a Swing component opaque, invoke setOpaque(true) on the The top-level container, JFrame , paints itself. JPanel is a generic lightweight container. For examples and task-oriented documentation for JPanel, see How to Use Panels, a section in The Java Tutorial. then add it to the bottom JPanel. in a variety of ways, and we cover how to use the LayoutManager later on in the tutorials. setOpaque(true); return totalGUI; 21 Apr 2017