">setRootPane</a>, <a href="https://docs.oracle.com/javase/8/docs/api/javax/swing/JFrame.html?is-external=true#setRootPaneCheckingEnabled-boolean-" title="class or interface in javax.swing">setRootPaneCheckingEnabled</a>, <a href="https://docs.oracle.com/javase/8/docs/api/javax/swing/JFrame.html?is-external=true#setTransferHandler-javax.swing.TransferHandler-" title="class or interface in javax.swing">setTransferHandler</a>, <a href="https://docs.oracle.com/javase/8/docs/api/javax/swing/JFrame.html?is-exter