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How can we align the JRadioButtons horizontally in Java?
A JRadioButton is a subclass of JToggleButton and it is a two-state button that can either selected or deselected. Unlike checkboxes, the radio buttons are associated with a group and only one radio button in a group can be selected and it can be implemented by using the ButtonGroup class. When the radio button in the group is selected, any other previously selected radio button in the group is deselected. We can align the radio buttons either horizontally or vertically by using BoxLayout.
Example
import java.awt.*;
import javax.swing.*;
public class HorizontalRadioButtonsTest extends JPanel {
public HorizontalRadioButtonsTest(){
JRadioButton jrb1 = new JRadioButton(" RB1");
JRadioButton jrb2 = new JRadioButton(" RB2");
JRadioButton jrb3 = new JRadioButton(" RB3");
JRadioButton jrb4 = new JRadioButton(" RB4");
JRadioButton jrb5 = new JRadioButton(" RB5");
Box box1 = Box.createHorizontalBox();
box1.add(jrb1);
box1.add(jrb2);
box1.add(jrb3);
box1.add(jrb4);
box1.add(jrb5);
JRadioButton jrb6 = new JRadioButton(" RB6");
JRadioButton jrb7 = new JRadioButton(" RB7");
JRadioButton jrb8 = new JRadioButton(" RB8");
JRadioButton jrb9 = new JRadioButton(" RB9");
JRadioButton jrb10 = new JRadioButton(" RB10");
Box box2 = Box.createHorizontalBox();
box2.add(jrb6);
box2.add(jrb7);
box2.add(jrb8);
box2.add(jrb9);
box2.add(jrb10);
JRadioButton jrb11 = new JRadioButton(" RB11");
JRadioButton jrb12 = new JRadioButton(" RB12");
JRadioButton jrb13 = new JRadioButton(" RB13");
JRadioButton jrb14 = new JRadioButton(" RB14");
JRadioButton jrb15 = new JRadioButton(" RB15");
Box box3 = Box.createHorizontalBox();
box3.add(jrb11);
box3.add(jrb12);
box3.add(jrb13);
box3.add(jrb14);
box3.add(jrb15);
JRadioButton jrb16 = new JRadioButton(" RB16");
JRadioButton jrb17 = new JRadioButton(" RB17");
JRadioButton jrb18 = new JRadioButton(" RB18");
JRadioButton jrb19 = new JRadioButton(" RB19");
JRadioButton jrb20 = new JRadioButton(" RB20");
Box box4 = Box.createHorizontalBox();
box4.add(jrb16);
box4.add(jrb17);
box4.add(jrb18);
box4.add(jrb19);
box4.add(jrb20);
setLayout(new GridLayout(5, 1));
add(box1);
add(box2);
add(box3);
add(box4);
}
public static void main(String[] args) {
JFrame frame = new JFrame("HorizontalRadioButtons Test");
frame.add(new HorizontalRadioButtonsTest());
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
frame.setLocationRelativeTo(null);
frame.setSize(375, 250);
frame.setVisible(true);
}
}Output
Updated on: 10-Feb-2020
501 Views
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