Bottom of JScrollPane is cut off

Question

I am trying to create a simple email client and the bottom of the body is being cut-off. If I add a horizontal scroll bar, it does not appear, and the bottom of the Vertical scr

Answer 1

The problem is because of FlowLayout Manager is being used. I have solved your problem with a different layout manager.
Before posting the solution here are some tips that you should follow

1. Change your class name. It should be in camel-case

2. Try to call pack() instead of setSize() as it will handle it automatically. When I replaced your setSize() with pack(), it was showing a awkward looking GUI which proves your layout and adding elements were not proper.

       Font size30 = new Font(null, Font.PLAIN, 30);
   
       JPanel pnl = new JPanel();
       pnl.setLayout(new BoxLayout(pnl,BoxLayout.Y_AXIS));
   
       Container contentPane = getContentPane();
   
       //--- User Info ---//
   
       JPanel userInfo = new JPanel();
   
       JLabel userLabel = new JLabel("Username: ");
       JTextField userField = new JTextField(12);
       userInfo.add(userLabel);
       userInfo.add(userField);
   
       JLabel passLabel = new JLabel("Password: ");
       JTextField passField = new JTextField(10);
       userInfo.add(passLabel);
       userInfo.add(passField);
   
       JLabel serverLabel = new JLabel("Mail Server: ");
       JTextField serverField = new JTextField(10);
       userInfo.add(serverLabel);
       userInfo.add(serverField);
   
       JLabel portLabel = new JLabel("Server Port: ");
       JTextField portField = new JTextField(3);
       userInfo.add(portLabel);
       userInfo.add(portField);
   
       //--- To: CC: and Subject Fields ---//
   
       JPanel msgInfo = new JPanel();
   
       JLabel toLabel = new JLabel("To: ");
       JTextField toField = new JTextField(30);
       msgInfo.add(toLabel);
       msgInfo.add(toField);
   
       JLabel subLabel = new JLabel("Subject: ");
       JTextField subField = new JTextField(30);
       msgInfo.add(subLabel);
       msgInfo.add(subField);
   
       //--- Body ---//
   
       JLabel bodyLabel = new JLabel("Body");
       bodyLabel.setFont(size30);
   
       JTextArea bodyField = new JTextArea(30,70);
       bodyField.setLineWrap(true);
       bodyField.setWrapStyleWord(true);
   
       JScrollPane bodyScroll = new JScrollPane(bodyField);
   
       bodyScroll.setVerticalScrollBarPolicy(JScrollPane.VERTICAL_SCROLLBAR_AS_NEEDED);
       bodyScroll.setHorizontalScrollBarPolicy(JScrollPane.HORIZONTAL_SCROLLBAR_NEVER);
   
   
       pnl.add(userInfo);
       pnl.add(msgInfo);
       pnl.add(bodyLabel);
       pnl.add(bodyScroll);
   
       contentPane.add(pnl);
   
       setVisible(true);
       pack();