Java Swing | JToolBar - GeeksforGeeks

JToolBar is a part of Java Swing package. JToolBar is an implementation of tool bar .The JToolBar is a group of commonly used components such as buttons or drop down menu.
JToolBar can be dragged to different locations by the user

Constructors of the class are:

JToolBar() : creates a new toolbar with horizontal orientation
JToolBar(int o) : creates a new toolbar with specified orientation
JToolBar(String n) : creates a new toolbar with specified name
JToolBar(String n, int o) : creates a new toolbar with specified name and orientation.

Commonly used methords :

addSeparator() : adds the separator to the end of toolbar
setFloatable(boolean b) : if true is passed then the toolbar can be dragged to other locations orlese not .
setLayout(LayoutManager m) : set layout of the toolbar
setOrientation(int o) : sets the orientation of toolbar
add(Component c) : adds component to the toolbar
getMargin() : returns the margin of the toolbar
setMargin(Insets m) : sets the margin of the toolbar to the insets given
getOrientation() : returns the orientation of the toolbar
updateUI() : Notification from the UIFactory that the Look and feel has changed.
setUI(ToolBarUI u) : Sets the Look and feel object that renders this component.
setRollover(boolean b) : Sets the rollover state of this toolbarto boolean b.
setFloatable(boolean b) :the boolean b decides whether the position of toolbar can be changed or not
setBorderPainted(boolean b): decides whether border should be painted or not.
paintBorder(Graphics g) : paint the toolbar’s border
isRollover() : Returns the rollover state.
isFloatable() : returns the floatable property.
isBorderPainted() : returns whether border is painted or not
getComponentIndex(Component c) : Returns the index of the specified component./li>
getComponentAtIndex(int i) :Returns the component at the specified index.
addSeparator(Dimension size) :Appends a separator of a specified dimension.
addSeparator() :Appends a separator of default size.
add(Action a) : adds a new JButton that follows the specified action.
paramString() : returns a string representation of this JToolBar.
getUIClassID() : returns the name of the Look and feel class that renders this component.
getAccessibleContext() : gets the AccessibleContext associated with this JToolBar.

The Following programs will illustrate the use of toolbar.

1. Program to create a simple toolbar and add buttons and combobox to it.

// Java Program to create a simple toolbar and add buttons and combobox to it. 
import java.awt.*; 
import javax.swing.*; 
import java.awt.event.*; 
public class Tool extends JFrame { 
    // toolbar 
    static JToolBar tb; 
  
    // buttons 
    static JButton b1, b2; 
  
    // create a frame 
    static JFrame f; 
  
    // create a combo box 
    static JComboBox x; 
  
    public static void main() 
    { 
  
        // create a frame 
        f = new JFrame("Toolbar demo"); 
  
        // set layout for frame 
        f.setLayout(new BorderLayout()); 
  
        // create a toolbar 
        tb = new JToolBar(); 
  
        // create a panel 
        JPanel p = new JPanel(); 
  
        // create a combobox 
        x = new JComboBox(new String[] { "item 1", "item 2", "item 3" }); 
  
        // create new buttons 
        b1 = new JButton("button 1"); 
        b2 = new JButton("button 2"); 
  
        // add buttons 
        p.add(b1); 
        p.add(b2); 
  
        // add menu to menu bar 
        p.add(x); 
  
        tb.add(p); 
  
        // add toolbar to frame 
        f.add(tb, BorderLayout.NORTH); 
  
        // set the size of the frame 
        f.setSize(500, 500); 
        f.setVisible(true); 
    } 
} 

Output :

2. Program to create a toolbar and add action listener to its components .

// Java Program to create a toolbar and add action listener to its components . 
import java.awt.*; 
import javax.swing.*; 
import java.awt.event.*; 
public class Tool extends JFrame implements ActionListener, ItemListener { 
    // toolbar 
    static JToolBar tb; 
  
    // buttons 
    static JButton b1, b2; 
  
    // create a frame 
    static JFrame f; 
  
    // create a combo box 
    static JComboBox x; 
  
    // create a label 
    static JLabel l, l1; 
  
    public static void main() 
    { 
        // create a object of class 
        Tool to = new Tool(); 
  
        // create a label 
        l = new JLabel("nothing selected"); 
        l1 = new JLabel("nothing selected"); 
  
        // create a frame 
        f = new JFrame("Toolbar demo"); 
  
        // set layout for frame 
        f.setLayout(new BorderLayout()); 
  
        // create a toolbar 
        tb = new JToolBar(); 
  
        // create a panel 
        JPanel p = new JPanel(); 
  
        // create a combobox 
        x = new JComboBox(new String[] { "item 1", "item 2", "item 3" }); 
  
        // add actionListener 
        x.addItemListener(to); 
  
        // create new buttons 
        b1 = new JButton("button 1"); 
        b2 = new JButton("button 2"); 
  
        // add ActionListener to it 
        b1.addActionListener(to); 
        b2.addActionListener(to); 
  
        // add buttons 
        p.add(b1); 
        p.add(b2); 
  
        // add menu to menu bar 
        p.add(x); 
  
        tb.add(p); 
  
        // create a panel 
        JPanel p1 = new JPanel(); 
  
        p1.add(l); 
        p1.add(l1); 
  
        // add toolbar to frame 
        f.add(tb, BorderLayout.NORTH); 
        f.add(p1, BorderLayout.CENTER); 
  
        // set the size of the frame 
        f.setSize(500, 500); 
        f.setVisible(true); 
    } 
  
    // if button is pressed 
    public void actionPerformed(ActionEvent e) 
    { 
        l.setText(e.getActionCommand() + " selected."); 
    } 
  
    // if combo box is selected 
    public void itemStateChanged(ItemEvent e) 
    { 
        l1.setText(x.getSelectedItem() + " selected."); 
    } 
} 

Output :

3. Program to create a vertical toolbar and add action listener to its components .

import java.awt.*; 
import javax.swing.*; 
import java.awt.event.*; 
public class Tool extends JFrame implements ActionListener, ItemListener { 
    // toolbar 
    static JToolBar tb; 
  
    // buttons 
    static JButton b1, b2; 
  
    // create a frame 
    static JFrame f; 
  
    // create a combo box 
    static JComboBox x; 
  
    // create a label 
    static JLabel l, l1; 
  
    public static void main() 
    { 
        // create a object of class 
        Tool to = new Tool(); 
  
        // create a label 
        l = new JLabel("nothing selected"); 
        l1 = new JLabel("nothing selected"); 
  
        // create a frame 
        f = new JFrame("Toolbar demo"); 
  
        // set layout for frame 
        f.setLayout(new BorderLayout()); 
  
        // create a toolbar 
        tb = new JToolBar("toolbar"); 
  
        // set orientation 
        tb.setOrientation(SwingConstants.VERTICAL); 
  
        // create a panel 
        JPanel p = new JPanel(); 
  
        // set layout 
        p.setLayout(new BoxLayout(p, BoxLayout.Y_AXIS)); 
  
        // create a combobox 
        x = new JComboBox(new String[] { "item 1", "item 2", "item 3" }); 
  
        // add actionListener 
        x.addItemListener(to); 
  
        // create new buttons 
        b1 = new JButton("button 1"); 
        b2 = new JButton("button 2"); 
  
        // add ActionListener to it 
        b1.addActionListener(to); 
        b2.addActionListener(to); 
  
        // add buttons 
        p.add(b1); 
        p.add(b2); 
  
        // add menu to menu bar 
        p.add(x); 
  
        tb.add(p); 
  
        // create a panel 
        JPanel p1 = new JPanel(); 
  
        p1.add(l); 
        p1.add(l1); 
  
        // add toolbar to frame 
        f.add(tb, BorderLayout.WEST); 
        f.add(p1, BorderLayout.CENTER); 
  
        // set the size of the frame 
        f.setSize(500, 500); 
        f.setVisible(true); 
    } 
  
    // if button is pressed 
    public void actionPerformed(ActionEvent e) 
    { 
        l.setText(e.getActionCommand() + " selected."); 
    } 
  
    // if combo box is selected 
    public void itemStateChanged(ItemEvent e) 
    { 
        l1.setText(x.getSelectedItem() + " selected."); 
    } 
} 

Output :

Note : The following programs might not run in an online compiler please use an Offline IDE

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