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This article is about how to use the Swing control JList. The editor thinks it is very practical, so share it with you as a reference and follow the editor to have a look.

The JList control in the 1Swing control is similar to a set of radio buttons or check boxes and can be selected by clicking itself, or you can select more than one.

2 create an instance of Jlist (the constructor is as follows)

A.JList ()

B.JList (Object [] obj)

C.JList (Vector vect)

D.JList (ListModel dataModel)

3 simple initialization example:

String [] args= {"apple", "pear", "orange", "banana"}

JList list=new JList (args)

4JList itself does not support scrolling. To scroll, you must put it in JScrollPane.

JScrollPane myScrollPane=new JScrollPane ()

MyScrollPane.add (list)

5 main method events:

ValueChanged: the selected value is triggered when it changes.

SetListData (Vector v): setting valu

GetSelectedValue () gets the selected value.

6 use:

Private void jList1ValueChanged (javax.swing.event.ListSelectionEvent evt) {String choosedStr= (String) this.jList1.getSelectedValue (); this.jLabelText.setText (choosedStr);}

B put the values in Vector into the Swing control JList

Private Vector vector=new Vector (); private void jButtonAddActionPerformed (java.awt.event.ActionEvent evt) {String str=this.jTextField.getText (). Trim (); if (stranded empty empty lists) {this.vector.add (str); this.jLabelText.setText ("you will add" + str+ "to the list"); this.jList1.setListData (vector);}}

C delete one of the items in the Swing control Jlist

PrivatevoidDeleteActionPerformed (java.awt.event.ActionEventevt) {Stringstr= (String) this.jList1.getSelectedValue (); if (stringually loaded nullable materials) {this.vector.remove (str); this.jList1.setListData (vector); this.jLabelText.setText ("you deleted" + str+ ");}} Thank you for reading! This is the end of this article on "how to use Swing control JList". I hope the above content can be of some help to you, so that you can learn more knowledge. if you think the article is good, you can share it out for more people to see!

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