Change the size of a JTextField inside a JBorderLayout

Question

When I use the code below it doesn t alter the size at all  it still fills the area in the grid   JPanel displayPanel   new JPanel new GridLayout 4  2     JTextField titleText   new JTextField  title     displayPanel add titleText    titleText setSize 200  24

User · Answer

Try to play with  setMinSize   setMaxSize   setPreferredSize     These method are used by layout when it decide what should be the size of current element  The layout manager calls setSize   and actually overrides your values

User · Answer

With a BorderLayout you need to use setPreferredSize instead of setSize

User · Answer

From the api on GridLayout      The container is divided into   equal-sized rectangles  and one   component is placed in each rectangle    Try using FlowLayout or GridBagLayout for your set size to be meaningful  Also   Serplat is correct  You need to use setPreferredSize  Dimension   instead of setSize  int  int         JPanel displayPanel   new JPanel           JPanel displayPanel   new JPanel  new GridLayout  4  2             JPanel displayPanel   new JPanel  new BorderLayout             JPanel displayPanel   new JPanel  new GridBagLayout           JTextField titleText   new JTextField   title          titleText setPreferredSize  new Dimension  200  24              For FlowLayout and GridLayout  uncomment      displayPanel add  titleText            For BorderLayout  uncomment         displayPanel add  titleText  BorderLayout NORTH            For GridBagLayout  uncomment         displayPanel add  titleText  new GridBagConstraints  0  0  1  1  1 0         1 0  GridBagConstraints CENTER  GridBagConstraints NONE         new Insets  0  0  0  0    0  0

User · Answer

Any component added to the GridLayout will be resized to the same size as the largest component added  If you want a component to remain at its preferred size  then wrap that component in a JPanel and then the panel will be resized   JPanel displayPanel   new JPanel new GridLayout 4  2     JTextField titleText   new JTextField  title     JPanel wrapper   new JPanel  new FlowLayout 0  0  FlowLayout LEADING     wrapper add  titleText    displayPanel add wrapper      displayPanel add titleText

[java] Change the size of a JTextField inside a JBorderLayout

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