What is JRadioButton in Java?
The JRadioButton class is used to create a radio button. It is used to choose one option from multiple options. It is widely used in exam systems or quiz. It should be added in ButtonGroup to select one radio button only.
How do you use JRadioButton?
Steps to Group the radio buttons together.
- Create a ButtonGroup instance by using “ButtonGroup()” Method. ButtonGroup G = new ButtonGroup()
- Now add buttons in a Group “G”, with the help of “add()” Method. Example: G. add(Button1); G. add(Button2);
What is the purpose of JRadioButton class?
Class JRadioButton. An implementation of a radio button — an item that can be selected or deselected, and which displays its state to the user. Used with a ButtonGroup object to create a group of buttons in which only one button at a time can be selected.
What is a button group Java?
The ButtonGroup class creates a group in which you can add radio buttons. Of course, only one radio button in a button group can be selected at any time. Thus, selecting a radio button in a button group automatically deselects any other buttons in the group.
What is setBounds in Java Swing?
setBounds is used to define the bounding rectangle of a component. This includes it’s position and size. The is used in a number of places within the framework. It is used by the layout manager’s to define the position and size of a component within it’s parent container.
What is JOptionPane in Java?
The JOptionPane class is used to provide standard dialog boxes such as message dialog box, confirm dialog box and input dialog box. These dialog boxes are used to display information or get input from the user. The JOptionPane class inherits JComponent class.
What are the differences between JToggleButton and radio button?
what is difference between toggle button and radio button? Please tell me the scenario in which these buttons are required .
- krajasekhar.
- Even though both of them are user of ON ,OFF status , toggle button is usedfor individual items status ,where as radio buttons are used for select an item from a group.
How do I use JToggleButton?
JToggleButton(String text): Creates an unselected toggle button with the specified text. JToggleButton(String text, boolean selected): Creates a toggle button with the specified text and selection state….Commonly Used Methods:
| Method | Description |
|---|---|
| paramString() | Returns a string representation of this JToggleButton. |
What kind of object is used Group radio buttons?
logical objects
Radio button groups are logical objects because they have no physical representation on a page. Radio button groups are used to group individual radio buttons.
How do you code a ComboBox in Java?
Java JComboBox Example with ActionListener
- import javax.swing.*;
- import java.awt.event.*;
- public class ComboBoxExample {
- JFrame f;
- ComboBoxExample(){
- f=new JFrame(“ComboBox Example”);
- final JLabel label = new JLabel();
- label.setHorizontalAlignment(JLabel.CENTER);
What is JscrollPane in Java Swing?
A JscrollPane is used to make scrollable view of a component. When screen size is limited, we use a scroll pane to display a large component or a component whose size can change dynamically.
Why setBounds () method is used?