How to add checkboxes in list in java

Question

Hey everyone I am trying to add checkboxes into JList but for some reasons it's giving me IllegalArgumentException. If anyone know how to add checkbox in JList please tell me. Thank you in advance

    JCheckBox []data={
    new JCheckBox("C"),
    new JCheckBox("C++"),
    new JCheckBox("Java"),
    new JCheckBox("C sharp")};
    JList l=new JList(data);
    JScrollPane sp=new  JScrollPane(l,ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED,ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED);

Where do you get an error? – Vincent van der Weele Apr 12 '13 at 12:56 — Vincent van der Weele, Apr 12 '13 at 12:56

Reimeus · Accepted Answer · 2013-04-12T13:30:39.127

3

This is the full exception message:

IllegalArgumentException: invalid verticalScrollBarPolicy

caused when JScrollPane is instantiated. The JScrollPane policies are the wrong way around:

JScrollPane sp = new JScrollPane(l,
        ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED,
        ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED);

edited Apr 12 '13 at 13:30

answered Apr 12 '13 at 13:00

Reimeus

158,255
15
216
276

score 1 · Answer 2 · answered Apr 12 '13 at 13:02

1

The problem is in the constructor for JScrollPane. The second parameter should be the Veritical scrollbar policy, not the Horizontal:

public JScrollPane(Component view, int vsbPolicy, int hsbPolicy)

answered Apr 12 '13 at 13:02

sikander

2,286
16
23

score 0 · Answer 3 · edited May 23 '17 at 11:49

0

The illegalArgumentExceptions ocurs because you switch the horizontal scrollbar policy with the vertical scrollbar policy.

But with this code you will not get a list of checkbox, only the text representation of the objets.

Look at this question

edited May 23 '17 at 11:49

Community

1
1

answered Apr 12 '13 at 13:04

Joan

427
3
6

ya it solve the problem but not showing any checkbox it showing objects in JList – Vighanesh Gursale Apr 12 '13 at 18:11

How to add checkboxes in list in java

3 Answers3