Java by API/javax.swing.table/DefaultTableModel

DefaultTableModel: addColumn(Object columnName)

   <source lang="java">

import java.awt.BorderLayout; import java.awt.Container; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.table.DefaultTableModel; public class ModelJTable extends JFrame {

 private DefaultTableModel model;
 private JTable table;
 public ModelJTable() {
   super();
   model = new DefaultTableModel();
   model.addColumn("First Name");
   model.addColumn("Last Name");
   model.addColumn("Years");
   String[] socrates = { "Socrates", "", "469-399 B.C." };
   model.addRow(socrates);
   String[] plato = { "Plato", "", "428-347 B.C." };
   model.addRow(plato);
   String[] aquinas = { "Thomas", "Aquinas", "1225-1274" };
   model.addRow(aquinas);
   String[] kierkegaard = { "Soren", "Kierkegaard", "1813-1855" };
   model.addRow(kierkegaard);
   String[] kant = { "Immanuel", "Kant", "1724-1804" };
   model.addRow(kant);
   String[] nietzsche = { "Friedrich", "Nietzsche", "1844-1900" };
   model.addRow(nietzsche);
   String[] arendt = { "Hannah", "Arendt", "1906-1975" };
   model.addRow(arendt);
   table = new JTable(model);
   JButton addButton = new JButton("Add Philosopher");
   addButton.addActionListener(new ActionListener() {
     public void actionPerformed(ActionEvent event) {
       String[] philosopher = { "", "", "" };
       model.addRow(philosopher);
     }
   });
   JButton removeButton = new JButton("Remove Selected Philosopher");
   removeButton.addActionListener(new ActionListener() {
     public void actionPerformed(ActionEvent event) {
       model.removeRow(table.getSelectedRow());
     }
   });
   JPanel inputPanel = new JPanel();
   inputPanel.add(addButton);
   inputPanel.add(removeButton);
   Container container = getContentPane();
   container.add(new JScrollPane(table), BorderLayout.CENTER);
   container.add(inputPanel, BorderLayout.NORTH);
   setDefaultCloseOperation(EXIT_ON_CLOSE);
   setSize(400, 300);
   setVisible(true);
 } 
 public static void main(String args[]) {
   new ModelJTable();
 }

}

 </source>
   
  
 
  

DefaultTableModel: addRow(Object[] rowData)

   <source lang="java">

import java.awt.BorderLayout; import java.awt.Container; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.table.DefaultTableModel; public class ModelJTable extends JFrame {

 private DefaultTableModel model;
 private JTable table;
 public ModelJTable() {
   super();
   model = new DefaultTableModel();
   model.addColumn("First Name");
   model.addColumn("Last Name");
   model.addColumn("Years");
   String[] socrates = { "Socrates", "", "469-399 B.C." };
   model.addRow(socrates);
   String[] plato = { "Plato", "", "428-347 B.C." };
   model.addRow(plato);
   String[] aquinas = { "Thomas", "Aquinas", "1225-1274" };
   model.addRow(aquinas);
   String[] kierkegaard = { "Soren", "Kierkegaard", "1813-1855" };
   model.addRow(kierkegaard);
   String[] kant = { "Immanuel", "Kant", "1724-1804" };
   model.addRow(kant);
   String[] nietzsche = { "Friedrich", "Nietzsche", "1844-1900" };
   model.addRow(nietzsche);
   String[] arendt = { "Hannah", "Arendt", "1906-1975" };
   model.addRow(arendt);
   table = new JTable(model);
   JButton addButton = new JButton("Add Philosopher");
   addButton.addActionListener(new ActionListener() {
     public void actionPerformed(ActionEvent event) {
       String[] philosopher = { "", "", "" };
       model.addRow(philosopher);
     }
   });
   JButton removeButton = new JButton("Remove Selected Philosopher");
   removeButton.addActionListener(new ActionListener() {
     public void actionPerformed(ActionEvent event) {
       model.removeRow(table.getSelectedRow());
     }
   });
   JPanel inputPanel = new JPanel();
   inputPanel.add(addButton);
   inputPanel.add(removeButton);
   Container container = getContentPane();
   container.add(new JScrollPane(table), BorderLayout.CENTER);
   container.add(inputPanel, BorderLayout.NORTH);
   setDefaultCloseOperation(EXIT_ON_CLOSE);
   setSize(400, 300);
   setVisible(true);
 } 
 public static void main(String args[]) {
   new ModelJTable();
 }

}

 </source>
   
  
 
  

DefaultTableModel: insertRow(int row, Object[] rowData)

   <source lang="java">
 

import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.table.DefaultTableModel; public class Main {

 public static void main(String[] argv) throws Exception {
   DefaultTableModel model = new DefaultTableModel();
   JTable table = new JTable(model);
   model.addColumn("Col1");
   model.addColumn("Col2");
   // Create the first row
   model.insertRow(0, new Object[] { "r1" });
   
   // Append a row
   model.insertRow(model.getRowCount(), new Object[] { "r5" });
   
   JFrame f = new JFrame();
   f.setSize(300, 300);
   f.add(new JScrollPane(table));
   f.setVisible(true);
 }

}

 </source>
   
  
 
  

DefaultTableModel: moveRow(int start, int end, int to)

   <source lang="java">
 

import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.table.DefaultTableModel; public class Main {

 public static void main(String[] argv) throws Exception {
   DefaultTableModel model = new DefaultTableModel();
   JTable table = new JTable(model);
   model.addColumn("Col1");
   model.addRow(new Object[] { "r1" });
   model.addRow(new Object[] { "r2" });
   model.addRow(new Object[] { "r3" });
   // Move the last row to the beginning of the table
   model.moveRow(model.getRowCount() - 1, model.getRowCount() - 1, 0);
   JFrame f = new JFrame();
   f.setSize(300, 300);
   f.add(new JScrollPane(table));
   f.setVisible(true);
 }

}

 </source>
   
  
 
  

DefaultTableModel: removeRow(int row)

   <source lang="java">

import java.awt.BorderLayout; import java.awt.Container; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.table.DefaultTableModel; public class ModelJTable extends JFrame {

 private DefaultTableModel model;
 private JTable table;
 public ModelJTable() {
   super();
   model = new DefaultTableModel();
   model.addColumn("First Name");
   model.addColumn("Last Name");
   model.addColumn("Years");
   String[] socrates = { "Socrates", "", "469-399 B.C." };
   model.addRow(socrates);
   String[] plato = { "Plato", "", "428-347 B.C." };
   model.addRow(plato);
   String[] aquinas = { "Thomas", "Aquinas", "1225-1274" };
   model.addRow(aquinas);
   String[] kierkegaard = { "Soren", "Kierkegaard", "1813-1855" };
   model.addRow(kierkegaard);
   String[] kant = { "Immanuel", "Kant", "1724-1804" };
   model.addRow(kant);
   String[] nietzsche = { "Friedrich", "Nietzsche", "1844-1900" };
   model.addRow(nietzsche);
   String[] arendt = { "Hannah", "Arendt", "1906-1975" };
   model.addRow(arendt);
   table = new JTable(model);
   JButton addButton = new JButton("Add Philosopher");
   addButton.addActionListener(new ActionListener() {
     public void actionPerformed(ActionEvent event) {
       String[] philosopher = { "", "", "" };
       model.addRow(philosopher);
     }
   });
   JButton removeButton = new JButton("Remove Selected Philosopher");
   removeButton.addActionListener(new ActionListener() {
     public void actionPerformed(ActionEvent event) {
       model.removeRow(table.getSelectedRow());
     }
   });
   JPanel inputPanel = new JPanel();
   inputPanel.add(addButton);
   inputPanel.add(removeButton);
   Container container = getContentPane();
   container.add(new JScrollPane(table), BorderLayout.CENTER);
   container.add(inputPanel, BorderLayout.NORTH);
   setDefaultCloseOperation(EXIT_ON_CLOSE);
   setSize(400, 300);
   setVisible(true);
 } 
 public static void main(String args[]) {
   new ModelJTable();
 }

}

 </source>
   
  
 
  

new DefaultTableModel(Object[][] data, Object[] columnNames)

   <source lang="java">

import java.awt.BorderLayout; import javax.swing.DefaultCellEditor; import javax.swing.JComboBox; import javax.swing.JFrame; import javax.swing.JScrollPane; import javax.swing.JTable; import javax.swing.table.DefaultTableModel; import javax.swing.table.TableCellEditor; public class MainClass {

 public static void main(String args[]) {
   String rows[][] = { { "A", "a" }, { "B", "b" }, { "E", "e" } };
   String headers[] = { "Upper", "Lower" };
   JComboBox comboBox = new JComboBox(rows[0]);
   comboBox.setMaximumRowCount(4);
   
   TableCellEditor editor = new DefaultCellEditor(comboBox);
   JFrame frame = new JFrame("JTable Anatomy");
   frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
   JTable table = new JTable(new DefaultTableModel(rows, headers));
   table.getColumnModel().getColumn(1).setCellEditor(editor);
   JScrollPane scrollPane = new JScrollPane(table);
   frame.add(scrollPane, BorderLayout.CENTER);
   frame.setSize(300, 150);
   frame.setVisible(true);
 }

}

 </source>