java - Why is my JFrame not showing? -

I'm pretty sure I did this before, but for some reason, JFrame will not appear when I Let's run

  JLabel Original String = New JLabel ("Basic String:" + str.getMutator ()); Jelabella current string = new JLabel ("current string:" + str.getMutator ()); JLabel Last String = New JLabel ("Last String:" + str.getTarget ()); Zpean panel = new zpn (); Panel.add (originalString); Panel.add (currentString); Panel.add (finalString); Jeffre Frame = New Jeffram ("String Encounter!"); Frame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE); . Frame.getContentPane () add (panel); Frame.pack (); Frame.setVisible (true); }  

Your problem should be somewhere else (does its name throw exceptions?) Because Your code works (I commented on the CR call):

  import javax.swing *; Public class test {public static zero main (string ... args) {JLab original string = new JLab ("original string:" / * + str.getMutator () * /); JLabel current string = new JLabel ("current string:" / * + str.getMutator () * /); JLabel Ultimate String = New JLabel ("Last String:" / * + str.getTarget () * /); Zpean panel = new zpn (); Panel.add (originalString); Panel.add (currentString); Panel.add (finalString); Jeffre Frame = New Jeffram ("String Encounter!"); Frame.setDefaultCloseOperation (JFrame.EXIT_ON_CLOSE); . Frame.getContentPane () add (panel); Frame.pack (); Frame.setVisible (true); }}