Java – How To Move JTable Selected Rows Up And Down Using NetBeans (GUI)
Java – How To Move JTable Selected Rows Up And Down Using NetBeans (GUI)
To highlight or select the jtable row upwards click Move up button. To highlight or select the jtable row downwards click Move down button. When you reach the end or the last row you get a dialog box.
Source Code:
/*
* Java - How To Move JTable Selected Rows Up And Down Using NetBeans (GUI)
*/
package AddDataToJTable;
import java.awt.Component;
import java.awt.Image;
import java.io.File;
import javax.swing.Icon;
import javax.swing.ImageIcon;
import javax.swing.JFileChooser;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JTable;
import javax.swing.filechooser.FileNameExtensionFilter;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableCellRenderer;
import javax.swing.table.TableColumn;
/**
*
* @author Genuine
*/
public class AddDataToJTable extends javax.swing.JFrame {
/**
* Creates new form AddDataToJTable
*/
public AddDataToJTable() {
initComponents();
//Calling method/function to add column header to jtable
addTableHeader();
}
/**
* 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() {
buttonGroup1 = new javax.swing.ButtonGroup();
buttonGroup2 = new javax.swing.ButtonGroup();
jScrollPane1 = new javax.swing.JScrollPane();
jTable1 = new javax.swing.JTable();
jTextFieldName = new javax.swing.JTextField();
jLabel1 = new javax.swing.JLabel();
jRadioButtonMale = new javax.swing.JRadioButton();
jRadioButtonFemale = new javax.swing.JRadioButton();
jCheckBoxJava = new javax.swing.JCheckBox();
jCheckBoxPHP = new javax.swing.JCheckBox();
jComboBoxSubjects = new javax.swing.JComboBox();
jButton1 = new javax.swing.JButton();
jLabelImage = new javax.swing.JLabel();
jButtonBrowseImage = new javax.swing.JButton();
jButton2 = new javax.swing.JButton();
jButton3 = new javax.swing.JButton();
setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);
jTable1.setModel(new javax.swing.table.DefaultTableModel(
new Object [][] {
},
new String [] {
"null"
}
));
jTable1.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
jTable1MouseClicked(evt);
}
});
jScrollPane1.setViewportView(jTable1);
jTextFieldName.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jTextFieldNameActionPerformed(evt);
}
});
jLabel1.setText("Name");
buttonGroup1.add(jRadioButtonMale);
jRadioButtonMale.setText("Male");
buttonGroup1.add(jRadioButtonFemale);
jRadioButtonFemale.setText("Female");
buttonGroup2.add(jCheckBoxJava);
jCheckBoxJava.setText("Java");
buttonGroup2.add(jCheckBoxPHP);
jCheckBoxPHP.setText("PHP");
jComboBoxSubjects.setModel(new javax.swing.DefaultComboBoxModel(new String[] { "Computer Science", "Information Technology", "Business Information Technology" }));
jButton1.setText("Add Data");
jButton1.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
jButton1MouseClicked(evt);
}
});
jButton1.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButton1ActionPerformed(evt);
}
});
jButtonBrowseImage.setText("Browse //");
jButtonBrowseImage.addActionListener(new java.awt.event.ActionListener() {
public void actionPerformed(java.awt.event.ActionEvent evt) {
jButtonBrowseImageActionPerformed(evt);
}
});
jButton2.setText("Move Up");
jButton2.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
jButton2MouseClicked(evt);
}
});
jButton3.setText("Move Down");
jButton3.addMouseListener(new java.awt.event.MouseAdapter() {
public void mouseClicked(java.awt.event.MouseEvent evt) {
jButton3MouseClicked(evt);
}
});
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()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jRadioButtonMale)
.addComponent(jCheckBoxJava))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jCheckBoxPHP)
.addComponent(jRadioButtonFemale)))
.addGroup(layout.createSequentialGroup()
.addComponent(jTextFieldName, javax.swing.GroupLayout.PREFERRED_SIZE, 97, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18)
.addComponent(jLabel1)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButtonBrowseImage, javax.swing.GroupLayout.PREFERRED_SIZE, 100, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addGap(10, 10, 10)
.addComponent(jLabelImage, javax.swing.GroupLayout.PREFERRED_SIZE, 146, javax.swing.GroupLayout.PREFERRED_SIZE))
.addGroup(layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jComboBoxSubjects, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(layout.createSequentialGroup()
.addComponent(jButton2, javax.swing.GroupLayout.PREFERRED_SIZE, 175, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addComponent(jButton3, javax.swing.GroupLayout.PREFERRED_SIZE, 173, javax.swing.GroupLayout.PREFERRED_SIZE)))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 150, javax.swing.GroupLayout.PREFERRED_SIZE))
.addComponent(jScrollPane1, javax.swing.GroupLayout.DEFAULT_SIZE, 534, Short.MAX_VALUE))
.addContainerGap())))
);
layout.setVerticalGroup(
layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
.addComponent(jLabelImage, javax.swing.GroupLayout.PREFERRED_SIZE, 121, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGroup(layout.createSequentialGroup()
.addContainerGap()
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jTextFieldName, javax.swing.GroupLayout.PREFERRED_SIZE, 30, javax.swing.GroupLayout.PREFERRED_SIZE)
.addComponent(jLabel1)
.addComponent(jButtonBrowseImage, javax.swing.GroupLayout.PREFERRED_SIZE, 38, javax.swing.GroupLayout.PREFERRED_SIZE))
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.UNRELATED)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jRadioButtonMale)
.addComponent(jRadioButtonFemale))
.addGap(18, 18, 18)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.BASELINE)
.addComponent(jCheckBoxJava)
.addComponent(jCheckBoxPHP))))
.addGap(30, 30, 30)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addGroup(layout.createSequentialGroup()
.addComponent(jButton1, javax.swing.GroupLayout.PREFERRED_SIZE, 49, javax.swing.GroupLayout.PREFERRED_SIZE)
.addGap(18, 18, 18))
.addGroup(layout.createSequentialGroup()
.addComponent(jComboBoxSubjects, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)
.addPreferredGap(javax.swing.LayoutStyle.ComponentPlacement.RELATED, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE)
.addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING, false)
.addComponent(jButton3, javax.swing.GroupLayout.DEFAULT_SIZE, 45, Short.MAX_VALUE)
.addComponent(jButton2, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, Short.MAX_VALUE))
.addGap(6, 6, 6)))
.addComponent(jScrollPane1, javax.swing.GroupLayout.PREFERRED_SIZE, 251, javax.swing.GroupLayout.PREFERRED_SIZE)
.addContainerGap(18, Short.MAX_VALUE))
);
pack();
setLocationRelativeTo(null);
}// </editor-fold>
private void jTextFieldNameActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
}
DefaultTableModel model;
String name = "";
String gender = "";
String programmingLanguage = "";
String Subject = "";
String selectedImagePath = "";
// byte imageJtable = new Byte(1024);
//Adding table headers
public void addTableHeader() {
model = (DefaultTableModel) jTable1.getModel();
Object[] newIdentifiers = new Object[]{"Name", "Gender", "Language", "Subject", "Image"};
model.setColumnIdentifiers(newIdentifiers);
//Get Image column and override TableCellRenderer class component method (getTableCellRendererComponent)
jTable1.getColumn("Image").setCellRenderer(new myTableCellRenderer());
}
class myTableCellRenderer implements TableCellRenderer {
@Override
public Component getTableCellRendererComponent(JTable table, Object value, boolean isSelected, boolean hasFocus, int row, int column) {
// Change Image column minimum width and maximum width
TableColumn tb = jTable1.getColumn("Image");
tb.setMaxWidth(60);
tb.setMinWidth(60);
jTable1.setRowHeight(60);
return (Component) value;
}
}
private void jButton1MouseClicked(java.awt.event.MouseEvent evt) {
// TODO add your handling code here:
}
private void jButton1ActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
name = jTextFieldName.getText();
if (jRadioButtonMale.isSelected()) {
gender = "Male";
} else if (jRadioButtonFemale.isSelected()) {
gender = "Female";
}
if (jCheckBoxJava.isSelected()) {
programmingLanguage = "Java";
} else if (jCheckBoxPHP.isSelected()) {
programmingLanguage = "PHP";
}
Subject = jComboBoxSubjects.getSelectedItem().toString();
JLabel imageLabel = new JLabel();
ImageIcon imageicon = new ImageIcon(selectedImagePath);
//Resize image to fixed dimensions 60 * 60 (width and height).
Image imageIc = imageicon.getImage().getScaledInstance(60, 60, Image.SCALE_SMOOTH);
//Storing imageicon in a jlabel
imageLabel.setIcon(new ImageIcon(imageIc));
//Checking if one or more field is empty
if (name.isEmpty() || gender.isEmpty() || programmingLanguage.isEmpty() || Subject.isEmpty() || imageIc == null) {
JOptionPane.showMessageDialog(null, "One Or More Fields Are Empty");
} else {
// JOptionPane.showMessageDialog(null, "All Fields are filled");
//Adding entered data to jtable
model.addRow(new Object[]{name, gender, programmingLanguage, Subject, imageLabel});
JOptionPane.showMessageDialog(null, "Data Inserted");
//clear fields after inserting the data
clearFields();
}
}
private void jTable1MouseClicked(java.awt.event.MouseEvent evt) {
// TODO add your handling code here:
// Display data from jtable in input fields
int selectedRow = jTable1.getSelectedRow();
jTextFieldName.setText(model.getValueAt(selectedRow, 0).toString());
String tableGender = model.getValueAt(selectedRow, 1).toString();
if (tableGender.equals("Male")) {
jRadioButtonMale.setSelected(true);
} else if (tableGender.equals("Female")) {
jRadioButtonFemale.setSelected(true);
}
String checkPLanguage = model.getValueAt(selectedRow, 2).toString();
if (checkPLanguage.equals("Java")) {
jCheckBoxJava.setSelected(true);
} else if (checkPLanguage.equals("PHP")) {
jCheckBoxPHP.setSelected(true);
}
String comboSub = model.getValueAt(selectedRow, 3).toString();
for (int i = 0; i < jComboBoxSubjects.getItemCount(); i++) {
if (jComboBoxSubjects.getItemAt(i).toString().equalsIgnoreCase(comboSub)) {
jComboBoxSubjects.setSelectedIndex(i);
}
}
//The image is stored as ImageIcon in jlabel
//The image is stored in the fourth column
JLabel imageJl = (JLabel) model.getValueAt(selectedRow, 4);
//Retrieving image icon from jlabel
//Store image icon In ImageIcon type Variable
ImageIcon imageJLIcon = (ImageIcon) imageJl.getIcon();
//Resize image to fit to jlable
Image imageJLFit = imageJLIcon.getImage().getScaledInstance(jLabelImage.getWidth(), jLabelImage.getHeight(), Image.SCALE_SMOOTH);
//Display selected image on jlabel
jLabelImage.setIcon(new ImageIcon(imageJLFit));
}
private void jButtonBrowseImageActionPerformed(java.awt.event.ActionEvent evt) {
// TODO add your handling code here:
// Setting default browser location
JFileChooser browseImageFile = new JFileChooser("C:\\Users\\Public\\Pictures\\Sample Pictures");
//Filter image extensions
FileNameExtensionFilter fnef = new FileNameExtensionFilter("IMAGES", "png", "jpg", "jpeg");
browseImageFile.addChoosableFileFilter(fnef);
int showOpenDialogue = browseImageFile.showOpenDialog(null);
if (showOpenDialogue == JFileChooser.APPROVE_OPTION) {
File selectedImageFile = browseImageFile.getSelectedFile();
selectedImagePath = selectedImageFile.getAbsolutePath();
JOptionPane.showMessageDialog(null, selectedImagePath);
//Display image on jlable
ImageIcon ii = new ImageIcon(selectedImagePath);
// Resize image to fit jlabel
Image image = ii.getImage().getScaledInstance(jLabelImage.getWidth(), jLabelImage.getHeight(), Image.SCALE_SMOOTH);
jLabelImage.setIcon(new ImageIcon(image));
}
}
private void jButton2MouseClicked(java.awt.event.MouseEvent evt) {
// TODO add your handling code here:
//Store the value of selected row in a avariable
int currentSelectedRow = jTable1.getSelectedRow();
if (currentSelectedRow > 0) {
//To move up substract 1 from the current selected row
model.moveRow(currentSelectedRow, currentSelectedRow, currentSelectedRow - 1);
jTable1.getSelectionModel().setSelectionInterval(currentSelectedRow - 1, currentSelectedRow - 1);
} else {
JOptionPane.showMessageDialog(null, "You have reached the end!! Press Move Down Button");
}
}
private void jButton3MouseClicked(java.awt.event.MouseEvent evt) {
// TODO add your handling code here:
//Store the value of selected row in a avariable
int currentSelectedRow = jTable1.getSelectedRow();
if (currentSelectedRow < jTable1.getRowCount() - 1) {
//To move down add 1 to the current selected row
model.moveRow(currentSelectedRow, currentSelectedRow, currentSelectedRow + 1);
jTable1.getSelectionModel().setSelectionInterval(currentSelectedRow + 1, currentSelectedRow + 1);
} else {
JOptionPane.showMessageDialog(null, "You have reached the end!! Press Move Up Button");
}
}
/**
* @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(AddDataToJTable.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (InstantiationException ex) {
java.util.logging.Logger.getLogger(AddDataToJTable.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (IllegalAccessException ex) {
java.util.logging.Logger.getLogger(AddDataToJTable.class.getName()).log(java.util.logging.Level.SEVERE, null, ex);
} catch (javax.swing.UnsupportedLookAndFeelException ex) {
java.util.logging.Logger.getLogger(AddDataToJTable.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 AddDataToJTable().setVisible(true);
}
});
}
// Variables declaration - do not modify
private javax.swing.ButtonGroup buttonGroup1;
private javax.swing.ButtonGroup buttonGroup2;
private javax.swing.JButton jButton1;
private javax.swing.JButton jButton2;
private javax.swing.JButton jButton3;
private javax.swing.JButton jButtonBrowseImage;
private javax.swing.JCheckBox jCheckBoxJava;
private javax.swing.JCheckBox jCheckBoxPHP;
private javax.swing.JComboBox jComboBoxSubjects;
private javax.swing.JLabel jLabel1;
private javax.swing.JLabel jLabelImage;
private javax.swing.JRadioButton jRadioButtonFemale;
private javax.swing.JRadioButton jRadioButtonMale;
private javax.swing.JScrollPane jScrollPane1;
private javax.swing.JTable jTable1;
private javax.swing.JTextField jTextFieldName;
// End of variables declaration
private void clearFields() {
jTextFieldName.setText("");
buttonGroup1.clearSelection();
buttonGroup2.clearSelection();
jComboBoxSubjects.setSelectedIndex(0);
jLabelImage.setIcon(null);
}
}
