Java - jMenuBar,jMenu,jMenuItem,JSeparator

How To Use MenuBar, Menu, MenuItem, Separator In Java NetBeans

In this Java Tutorial we will see How To Add And Use JMenuBar, JMenu, JMenuItem, 
JSeparator In Java NetBeans .

Project Source Code:

package javaapplication1;

/**
 *
 * @author 1BestCsharp
 */
public class Java_MenuBar extends javax.swing.JFrame {

    /**
     * Creates new form Java_MenuBar
     */
    public Java_MenuBar() {
        initComponents();
    }

    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        jMenuBar1 = new javax.swing.JMenuBar();
        jMenu3 = new javax.swing.JMenu();
        jMenuItem1 = new javax.swing.JMenuItem();
        jMenuItem3 = new javax.swing.JMenuItem();
        jSeparator1 = new javax.swing.JPopupMenu.Separator();
        jMenuItem2 = new javax.swing.JMenuItem();
        jMenuItem_Save = new javax.swing.JMenuItem();
        jMenu1 = new javax.swing.JMenu();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jMenu3.setText("File");

        jMenuItem1.setAccelerator(javax.swing.KeyStroke.getKeyStroke(java.awt.event.KeyEvent.VK_S, java.awt.event.InputEvent.CTRL_MASK));
        jMenuItem1.setIcon(new javax.swing.ImageIcon(getClass().getResource("/images/save.png"))); // NOI18N
        jMenuItem1.setText("Save");
        jMenuItem1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jMenuItem1ActionPerformed(evt);
            }
        });
        jMenu3.add(jMenuItem1);

        jMenuItem3.setIcon(new javax.swing.ImageIcon(getClass().getResource("/images/add.png"))); // NOI18N
        jMenuItem3.setText("Add");
        jMenu3.add(jMenuItem3);
        jMenu3.add(jSeparator1);

        jMenuItem2.setIcon(new javax.swing.ImageIcon(getClass().getResource("/images/edit.png"))); // NOI18N
        jMenuItem2.setText("Edit");
        jMenu3.add(jMenuItem2);

        jMenuItem_Save.setIcon(new javax.swing.ImageIcon(getClass().getResource("/images/close.png"))); // NOI18N
        jMenuItem_Save.setText("Delete");
        jMenu3.add(jMenuItem_Save);

        jMenuBar1.add(jMenu3);

        jMenu1.setText("Dev");
        jMenuBar1.add(jMenu1);

        setJMenuBar(jMenuBar1);

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 616, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 398, Short.MAX_VALUE)
        );

        pack();
    }// </editor-fold>                        

    private void jMenuItem1ActionPerformed(java.awt.event.ActionEvent evt) {                                           
        
        System.out.println("Save");
        
    }                                          

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(Java_MenuBar.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(Java_MenuBar.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(Java_MenuBar.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(Java_MenuBar.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Java_MenuBar().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify                     
    private javax.swing.JMenu jMenu1;
    private javax.swing.JMenu jMenu3;
    private javax.swing.JMenuBar jMenuBar1;
    private javax.swing.JMenuItem jMenuItem1;
    private javax.swing.JMenuItem jMenuItem2;
    private javax.swing.JMenuItem jMenuItem3;
    private javax.swing.JMenuItem jMenuItem_Save;
    private javax.swing.JPopupMenu.Separator jSeparator1;
    // End of variables declaration                   
}

///////////////OUTPUT:

---

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Java - Change JLabel Font Size

How To Change JLabel Font Size Using JSlider In Java NetBeans

In this Java Tutorial we will see How To Change A JLabel Text Font Size Using A JSlider So The Image Size Will Depend On The JSider Value using Java NetBeans .

Project Source Code:

package javaapplication1;

import java.awt.BorderLayout;
import java.awt.Font;
import javax.swing.JLabel;
import javax.swing.SwingUtilities;

/**
 *
 * @author 1BestCsharp
 */
public class Java_JSider_Resize_Text extends javax.swing.JFrame {

    /**
     * Creates new form Java_JSider_Resize_Text
     */
    public Java_JSider_Resize_Text() {
        initComponents();
        jPanel1.setLayout(new BorderLayout());
        lbl.setHorizontalAlignment(SwingUtilities.CENTER);
        lbl.setVerticalAlignment(SwingUtilities.CENTER);
        jPanel1.add(lbl, BorderLayout.CENTER);
        jSlider_FontSize.setValue(lbl.getFont().getSize());
    }

    JLabel lbl = new JLabel("Message");
    
    /**
     * This method is called from within the constructor to initialize the form.
     * WARNING: Do NOT modify this code. The content of this method is always
     * regenerated by the Form Editor.
     */
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        jSlider_FontSize = new javax.swing.JSlider();
        jPanel1 = new javax.swing.JPanel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jSlider_FontSize.setFont(new java.awt.Font("Tahoma", 1, 14)); // NOI18N
        jSlider_FontSize.setForeground(new java.awt.Color(51, 51, 255));
        jSlider_FontSize.setMajorTickSpacing(10);
        jSlider_FontSize.setMaximum(150);
        jSlider_FontSize.setPaintLabels(true);
        jSlider_FontSize.setPaintTicks(true);
        jSlider_FontSize.addChangeListener(new javax.swing.event.ChangeListener() {
            public void stateChanged(javax.swing.event.ChangeEvent evt) {
                jSlider_FontSizeStateChanged(evt);
            }
        });

        javax.swing.GroupLayout jPanel1Layout = new javax.swing.GroupLayout(jPanel1);
        jPanel1.setLayout(jPanel1Layout);
        jPanel1Layout.setHorizontalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 0, Short.MAX_VALUE)
        );
        jPanel1Layout.setVerticalGroup(
            jPanel1Layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGap(0, 352, Short.MAX_VALUE)
        );

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jSlider_FontSize, javax.swing.GroupLayout.DEFAULT_SIZE, 645, Short.MAX_VALUE)
                .addContainerGap())
            .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addComponent(jPanel1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addGap(18, 18, 18)
                .addComponent(jSlider_FontSize, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addContainerGap())
        );

        pack();
    }// </editor-fold>                        

    private void jSlider_FontSizeStateChanged(javax.swing.event.ChangeEvent evt) {                                              
        
        lbl.setFont(new Font(lbl.getFont().getName(), lbl.getFont().getStyle(), jSlider_FontSize.getValue()));
        
    }                                             

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(Java_JSider_Resize_Text.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(Java_JSider_Resize_Text.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(Java_JSider_Resize_Text.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(Java_JSider_Resize_Text.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Java_JSider_Resize_Text().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify                     
    private javax.swing.JPanel jPanel1;
    private javax.swing.JSlider jSlider_FontSize;
    // End of variables declaration                   
}

///////////////OUTPUT:

---

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Java - Using JSlider

How To Use JSlider In Java NetBeans

In this Java Tutorial we will see How To Add A JSlider To Your Window And How To 

Use It And His Value And Display It  using Java NetBeans .

Project Source Code:

package javaapplication1;

/**
 *
 * @author 1BestCsharp
 */
public class Java_JSlider extends javax.swing.JFrame {

    /**
     * Creates new form Java_JSlider
     */
    public Java_JSlider() {
        initComponents();
    }
    
    @SuppressWarnings("unchecked")
    // <editor-fold defaultstate="collapsed" desc="Generated Code">                          
    private void initComponents() {

        jSlider1 = new javax.swing.JSlider();
        jLabel1 = new javax.swing.JLabel();

        setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

        jSlider1.setFont(new java.awt.Font("Tahoma", 1, 18)); // NOI18N
        jSlider1.setForeground(new java.awt.Color(255, 0, 102));
        jSlider1.setMajorTickSpacing(10);
        jSlider1.setPaintLabels(true);
        jSlider1.setPaintTicks(true);
        jSlider1.setValue(0);
        jSlider1.addChangeListener(new javax.swing.event.ChangeListener() {
            public void stateChanged(javax.swing.event.ChangeEvent evt) {
                jSlider1StateChanged(evt);
            }
        });

        jLabel1.setFont(new java.awt.Font("Tahoma", 1, 24)); // NOI18N
        jLabel1.setText("0");

        javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(206, 206, 206)
                .addComponent(jLabel1)
                .addContainerGap(290, Short.MAX_VALUE))
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jSlider1, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addGap(20, 20, 20)
                .addComponent(jSlider1, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
                .addGap(79, 79, 79)
                .addComponent(jLabel1)
                .addContainerGap(61, Short.MAX_VALUE))
        );

        jLabel1.getAccessibleContext().setAccessibleName("JLblVal");

        pack();
    }// </editor-fold>                        

    private void jSlider1StateChanged(javax.swing.event.ChangeEvent evt) {                                   
        jLabel1.setText(Integer.toString(jSlider1.getValue()));
        
    }                                     

    /**
     * @param args the command line arguments
     */
    public static void main(String args[]) {
        /* Set the Nimbus look and feel */
        //<editor-fold defaultstate="collapsed" desc=" Look and feel setting code (optional) ">
        /* If Nimbus (introduced in Java SE 6) is not available, stay with the default look and feel.
         * For details see http://download.oracle.com/javase/tutorial/uiswing/lookandfeel/plaf.html 
         */
        try {
            for (javax.swing.UIManager.LookAndFeelInfo info : javax.swing.UIManager.getInstalledLookAndFeels()) {
                if ("Nimbus".equals(info.getName())) {
                    javax.swing.UIManager.setLookAndFeel(info.getClassName());
                    break;
                }
            }
        } catch (ClassNotFoundException ex) {
            java.util.logging.Logger.getLogger(Java_JSlider.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (InstantiationException ex) {
            java.util.logging.Logger.getLogger(Java_JSlider.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (IllegalAccessException ex) {
            java.util.logging.Logger.getLogger(Java_JSlider.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        } catch (javax.swing.UnsupportedLookAndFeelException ex) {
            java.util.logging.Logger.getLogger(Java_JSlider.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
        }
        //</editor-fold>

        /* Create and display the form */
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new Java_JSlider().setVisible(true);
            }
        });
    }

    // Variables declaration - do not modify                     
    private javax.swing.JLabel jLabel1;
    private javax.swing.JSlider jSlider1;
    // End of variables declaration                   
}

///////////////OUTPUT:

---

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C# - Populate ComboBox With Files Name

C# - How To Fill ComboBox With Files Names Using C#

In This C# Tutorial  We Will See How To Bind A Combobox With Files Names 
In CSharp Programming Language.

Project Source Code:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

using System.IO;

namespace WindowsFormsApplication1

{

    public partial class Form11 : Form

    {

        public Form11()

        {

            InitializeComponent();

        }

        private void Form11_Load(object sender, EventArgs e)

        {

            string path = @"C:\Users\Directory\Folder";

            DataTable table = new DataTable();

            table.Columns.Add("File Name");

            table.Columns.Add("File Path");

            string[] files = Directory.GetFiles(path);

           for(int i = 0; i < files.Length; i++)

            {

                FileInfo file = new FileInfo(files[i]);

                table.Rows.Add(file.Name, path + "\\" + file.Name);

            }

            // using foreach loop

            DirectoryInfo dir = new DirectoryInfo(path);

            foreach(FileInfo fileInf in dir.GetFiles())

            {

                table.Rows.Add(fileInf.Name, path + "\\" + fileInf.Name);

            } 

            comboBox1.DataSource = table;

            comboBox1.DisplayMember = "File Name";

            comboBox1.ValueMember = "File Path";

        }

    }

}

---

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C# - Resize Image Using TrackBar

C# - How To Change PictureBox Size Using TrackBar In C#

In This C# Tutorial  We Will See How To Resize PictureBox Width And Height Using TrackBar In CSharp Programming Language.

Project Source Code:

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Threading.Tasks;

using System.Windows.Forms;

namespace WindowsFormsApplication1

{

    public partial class Form14 : Form

    {

        public Form14()

        {

            InitializeComponent();

        }

        //Width

        private void trackBar1_Scroll(object sender, EventArgs e)

        {

            pictureBox1.Size = new Size(trackBar1.Value, pictureBox1.Size.Height);

            pictureBox1.Left = (this.ClientSize.Width - pictureBox1.Width) / 2;

            pictureBox1.Top = (this.ClientSize.Height - pictureBox1.Height) / 2;

        }

        //Height

        private void trackBar2_Scroll(object sender, EventArgs e)

        {

            pictureBox1.Size = new Size(pictureBox1.Size.Width, trackBar2.Value);

            pictureBox1.Left = (this.ClientSize.Width - pictureBox1.Width) / 2;

            pictureBox1.Top = (this.ClientSize.Height - pictureBox1.Height) / 2;

        }

        private void Form14_Load(object sender, EventArgs e)

        {

            trackBar1.Value = pictureBox1.Size.Width;

            trackBar2.Value = pictureBox1.Size.Height;

            pictureBox1.Left = (this.ClientSize.Width - pictureBox1.Width) / 2;

            pictureBox1.Top = (this.ClientSize.Height - pictureBox1.Height) / 2;

        }

    }

}

OutPut :

---

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