How can I resize a Swing text field?

Question

I wrote the code below:

public class Information extends JFrame{
private JComboBox comboBox1;
private JComboBox comboBox2;
private JTextField textField[];
private JTextField jtextField;
private JLabel label[];

public Information()
{
    setLayout(new flowlayout());
    Box box = Box.createVerticalBox();
    for(int i = 0; i < 20; i++)//textfield
    {
        textField = new JTextField[20];
        box.add(Box.createRigidArea(new Dimension(5,5)));
        textField[i] = new JTextField(2);

        textField[i].setAlignmentX(2f);
        textField[i].setAlignmentY(2f);

        box.add(textField[i]);
    }
    for(int i = 0; i < 22; i++ )//lable
    {

    }
    add(box);
}
}

I want that text field showed in my favorite size, but it fills the whole screen.

I used

 textField[i].setAlignmentX(2f);
 textField[i].setAlignmentY(2f);

and setcolum(), but it didn't resize the text field. How can I decrease my text fields' sizes?

I use from

setMaximumSize(new Dimension(80, 70));
setPreferredSize(new Dimension(50, 50));

their resize the textfield but change it's location but i don't want to change their

location.is there any manner than i change textfield position?

i use from setlocation but it didn't work!!.

see also: [Need help! how can i resize a JTextField?](http://stackoverflow.com/questions/2442111/need-help-how-can-i-resize-a-jtextfield) — MikeM, Mar 30 '11 at 14:09

score 4 · Answer 1 · answered Mar 30 '11 at 14:09

4

use setPreferredSize()

also setMinimumSize(), setMaximumSize()

answered Mar 30 '11 at 14:09

MikeM

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Interesting... see [Difference between the setPreferredSize() and setSize() methods in components](http://stackoverflow.com/questions/1783793/java-difference-between-the-setpreferredsize-and-setsize-methods-in-componen) for more. – Pops Mar 30 '11 at 14:22

score 0 · Answer 2 · answered Mar 17 '18 at 12:23

I think you want to Set a specific size for your textfield. To do this : Firstly set the layout as null using the object of Information class

information.setLayout(null);

And set the bounds of the JTextField using setBounds method :

textField.setBounds(0,0,100,100);

score 0 · Answer 3 · answered Mar 30 '11 at 13:58

0

I believe you want to use setBounds which will take a width and height as parameters.

answered Mar 30 '11 at 13:58

Riggy

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score 0 · Answer 4 · answered Mar 30 '11 at 14:01

0

The setAlignment methods change the alignment of a component in its container, not the component's actual size. I think you're looking for JTextField's setColumns() method. There's always the inherited setSize() method, too.

answered Mar 30 '11 at 14:01

Pops

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Wait, what are you setting it on? Are you setting it on the array? That shouldn't even compile, let alone actually resize a specific field. – Pops Mar 30 '11 at 14:05

Herrad · Answer 5 · 2011-03-30T15:17:10.727

0

Try setPreferredSize(), this (along with setMinimum/MaximumSize()) tend to be used by a lot of LayoutManagers including FlowLayout to appropriately size a container's components.

Also, as a side note, looks like you're re-creating your array of JTextAreas each iteration in that for loop, so only textField[19] would exist...

edited Mar 30 '11 at 15:17

answered Mar 30 '11 at 14:23

Herrad

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How can I resize a Swing text field?

5 Answers5