ne--" title="class or interface in javax.swing">getContentPane</a>, <a href="https://docs.oracle.com/javase/8/docs/api/javax/swing/JFrame.html?is-external=true#getDefaultCloseOperation--" title="class or interface in javax.swing">getDefaultCloseOperation</a>, <a href="https://docs.oracle.com/javase/8/docs/api/javax/swing/JFrame.html?is-external=true#getGlassPane--" title="class or interface in javax.swing">getGlassPane</a>, <a href="https://docs.oracle.com/javase/8/docs/api/javax/swing/JFrame.html?is-extern