How to set the height and the width of a textfield in Java

Question

I was trying to make my JTextField fill the width and set a height for it but still failed  I tried adding the code setPreferredSize new Dimension 320 200    but still failed  Is there any way I can make my JTextField fill the width and set the height to 200 or something

User · Answer

What type of LayoutManager are you using for the panel you're adding the JTextField to?

Different layout managers approach sizing elements on them in different ways, some respect SetPreferredSize(), while others will scale the compoenents to fit their container.

See: http://docs.oracle.com/javase/tutorial/uiswing/layout/visual.html

ps. this has nothing to do with eclipse, its java.

User · Answer

You should not play with the height  Let the text field determine the height based on the font used    If you want to control the width of the text field then you can use  textField setColumns         to let the text field determine the preferred width   Or if you want the width to be the entire width of the parent panel then you need to use an appropriate layout  Maybe the NORTH of a BorderLayout    See the Swing tutorial on Layout Managers for more information

User · Answer

There s a way which maybe not perfect  but can meet your requirement  The main point here is use a special dimension to restrict the height  But at the same time  width actually is free  as the max width is big enough   package test  import java awt    import javax swing     public final class TestFrame extends Frame      public TestFrame            JPanel p   new JPanel            p setLayout new BoxLayout p  BoxLayout X AXIS            p setPreferredSize new Dimension 500  200            p setMaximumSize new Dimension 10000  200            p add new JLabel  TEST                JPanel p1   new JPanel            p1 setLayout new BoxLayout p1  BoxLayout X AXIS            p1 setMaximumSize new Dimension 10000  200            p1 add new JTextField 50             p add p1            this setLayout new BorderLayout             this add p  BorderLayout CENTER               TODO  GUI CREATE

User · Answer

f setLayout null     add the above lines   f is a     JFrame     or a Container where you have added the     JTestField    But try to learn  LayoutManager  in java   refer to other answers for the links of the tutorials  Or try This http   docs oracle com javase tutorial uiswing layout visual html

User · Answer

xyz setColumns   method is control the width of TextField   import java awt    import javax swing       class miniproj extends JFrame      public static void main String   args          JFrame frame new JFrame        JPanel panel new JPanel        frame setSize 400 400       frame setTitle  Registration          JLabel lablename new JLabel  Enter your name        TextField tname new TextField 30       tname setColumns 45        JLabel lableemail new JLabel  Enter your Email        TextField email new TextField 30       email setColumns 45       JLabel lableaddress new JLabel  Enter your address        TextField address new TextField 30       address setColumns 45       address setFont Font getFont Font SERIF        JLabel lablepass new JLabel  Enter your password        TextField pass new TextField 30       pass setColumns 45        JButton login new JButton        JButton create new JButton        login setPreferredSize new Dimension 90 30        login setText  Login        create setPreferredSize new Dimension 90 30        create setText  Create           panel add lablename       panel add tname       panel add lableemail       panel add email       panel add lableaddress       panel add address       panel add lablepass       panel add pass       panel add create       panel add login          frame add panel       frame setVisible true

User · Answer

package myguo  import javax swing     public class MyGuo        JFrame f      JButton bt1   bt2       JTextField t1 t2      JLabel l1 l2       MyGuo             f new JFrame  LOG IN FORM            f setLocation 500 300           f setSize 600 500           f setLayout null           f setDefaultCloseOperation JFrame EXIT ON CLOSE            l1 new JLabel  NAME            l1 setBounds 50 70 80 30            l2 new JLabel  PASSWORD            l2 setBounds 50 100 80 30            t1 new JTextField            t1 setBounds 140  70  200 30             t2 new JTextField            t2 setBounds 140  110  200 30            bt1  new JButton  LOG IN            bt1 setBounds 150 150 80 30            bt2  new JButton  CLEAR            bt2 setBounds 235 150 80 30             f add l1           f add l2            f add t1            f add t2            f add bt1            f add bt2        f setVisible true              public static void main String   args            MyGuo myGuo   new MyGuo

User · Answer

set the height to 200    Set the Font to a large variant  150  px    As already mentioned  control the width using columns  and use a layout manager  or constraint  that will respect the preferred width  amp  height     import java awt    import javax swing    import javax swing border EmptyBorder   public class BigTextField        public static void main String   args            Runnable r   new Runnable                   Override             public void run                        the GUI as seen by the user  without frame                  JPanel gui   new JPanel new FlowLayout 5                    gui setBorder new EmptyBorder 2  3  2  3                        Create big text fields  amp  add them to the GUI                 String s    Hello                    JTextField tf1   new JTextField s  1                   Font bigFont   tf1 getFont   deriveFont Font PLAIN  150f                   tf1 setFont bigFont                   gui add tf1                    JTextField tf2   new JTextField s  2                   tf2 setFont bigFont                   gui add tf2                    JTextField tf3   new JTextField s  3                   tf3 setFont bigFont                   gui add tf3                    gui setBackground Color WHITE                    JFrame f   new JFrame  Big Text Fields                    f add gui                      Ensures JVM closes after frame s  closed and                    all non-daemon threads are finished                 f setDefaultCloseOperation JFrame DISPOSE ON CLOSE                      See http   stackoverflow com a 7143398 418556 for demo                  f setLocationByPlatform true                       ensures the frame is the minimum size it needs to be                    in order display the components within it                 f pack                       should be done last  to avoid flickering  moving                     resizing artifacts                  f setVisible true                                       Swing GUIs should be created and updated on the EDT            http   docs oracle com javase tutorial uiswing concurrency initial html         SwingUtilities invokeLater r

[java] How to set the height and the width of a textfield in Java?

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