How do I select from JList?
Get selected value from JList
- Create a class that extends JFrame and implements ActionListener interface.
- Create an array of objects.
- Create a new JList with the above array.
- Create a new JButton .
- Call getSelectedIndex to get the index of the selected item in the JList .
In which component we can select multiple items in Java?
setSelectionMode(ListSelectionModel. MULTIPLE_INTERVAL_SELECTION); –> It allows user to select multiple items in the list.
How do you select multiple values in Java?
In some cases, you need to allow your users to select multiple values rather than just one value from a list of choices. You can do this using one of the following component tags: An h:selectManyCheckbox tag, displayed as a set of check boxes. An h:selectManyMenu tag, displayed as a drop-down menu.
How do you add a JList?
Populate the JList with a DefaultListModel, not a vector, and have the model visible in the class. Then simply call addElement on the list model to add items to it.
How do you do multiple selection?
Click the first item, then press the SHIFT key and hold it. Click the last item and release the SHIFT key. To select adjacent items, you can also use the mouse. Click the left mouse button on the first item, hold the mouse button, move the cursor to the last item and then release the mouse button.
What is multi select question?
Multi-select (M-S) questions require respondents to identify one or more correct answers in a list of possible answers. Unlike multiple choice (MC) questions, multi-select questions enable you to choose a grading format and allow users to select more than one answer.
How do I create a multi select?
For windows: Hold down the control (ctrl) button to select multiple options. For Mac: Hold down the command button to select multiple options.
How do you select multiple values in a database?
To select multiple values, you can use where clause with OR and IN operator.
What are the selection modes supported by the JList component?
How many types of selection modes for a JList in Java?
- SINGLE_SELECTION: Only one list index can be selected at a time.
- SINGLE_INTERVAL_SELECTION: Only one contiguous interval can be selected at a time.
- MULTIPLE_INTERVAL_SELECTION: In this mode, there is no restriction on what can be selected. This is a default mode.
Which method of JList returns an array of all selected items?
JList is a component that displays a set of Objects and allows the user to select one or more items . JList inherits JComponent class. JList is a easy way to display an array of Vectors ….Java Swing | JList with examples.
| method | explanation |
|---|---|
| getSelectedIndices() | returns an array of all of the selected indices, in increasing order |
Which listener handles all list related events?
The Event listener represent the interfaces responsible to handle events. Java provides us various Event listener classes but we will discuss those which are more frequently used. Every method of an event listener method has a single argument as an object which is subclass of EventObject class.
What is the selection mode in jlist?
The selection mode defines the way elements can be selected. There are totally 3 selection modes available to be set for JList: This mode specifies that only a single item can be selected at any point of time. This mode specifies that multiple items can be selected, but they have to be contiguous.
How to show only item 2 as selected in a jlist?
String [] items = { “Item 1”, “Item 2”, “Item 3”, “Item 4” }; final JList theList = new JList (items); theList.setSelectedValue (“Item 1”,true); theList.setSelectedValue (“Item 2”,true); This code shows only Item 2 as selected. Show activity on this post.
What is jlist in Java?
Last Updated : 16 Apr, 2021 JList is part of Java Swing package. JList is a component that displays a set of Objects and allows the user to select one or more items. JList inherits JComponent class.
How to get selected values from a jlist in Java?
We call the handy method getSelectedValuesList () on the JList instance which returns a List , as in our case, we had declared the JList to contain only String values. For illustration purposes, we simply print this list on the console which prints the list of values selected.