How to add new Row by clicking in a jTable?

Question

I have created a java program in which:

A user can input data by using a custom JOption showConfirmDialog box (with added panel and textboxes)

I've used a separate method for the user input

public static String[] MultiInput(){

  JTextField idField = new JTextField(5);
  JTextField nameField = new JTextField(5);
  JTextField addressField = new JTextField(5);
  JTextField ageField = new JTextField(5);

  JPanel myPanel = new JPanel();
  myPanel.add(new JLabel("ID number:"));
  myPanel.add(idField);
  myPanel.add(Box.createHorizontalStrut(15)); // for  spacing
  myPanel.add(new JLabel("Name:"));
  myPanel.add(nameField);
  myPanel.add(Box.createHorizontalStrut(15)); // for  spacing 
  myPanel.add(new JLabel("Address:"));
  myPanel.add(addressField);
  myPanel.add(Box.createHorizontalStrut(15)); // for  spacing
  myPanel.add(new JLabel("Age:"));
  myPanel.add(ageField);

  int result = JOptionPane.showConfirmDialog(null, myPanel, 
           "Please Enter Data Here:", JOptionPane.OK_CANCEL_OPTION);
  if (result == JOptionPane.OK_OPTION) {
      String[] Input={idField.getText(),nameField.getText(),addressField.getText(),ageField.getText()};

      return Input;
  }
    return null;
}

and calls this method once the user clicks a row on the jTable

 private void jTable1MouseClicked(java.awt.event.MouseEvent evt) {        

   int row = jTable1.getSelectedRow();
    String[] input;
    input =MultiInput(); // get input from user

    for(int ctr=0;ctr<jTable1.getColumnCount();ctr++){
       jTable1.setValueAt(input[ctr], row, ctr);

    }

The user fills in the TextFields and after clicking "OK", sets the value in the selected row in the jTable.

The Problem is I want to create a new row for the input if the user clicks the jTable

EDIT:

This is how I created my jTable and Table Model

final DefaultTableModel model = new javax.swing.table.DefaultTableModel(
new Object [][] {                                                   
    {null, null, null, null},
    {null, null, null, null},
    {null, null, null, null},
    {null, null, null, null}

},
new String [] {
    "idnum", "name", "adress", "age"
}
    );
jTable1 = new javax.swing.JTable();

jTable1.setAutoCreateRowSorter(true);

jTable1.setModel(model);

jTable1.addMouseListener(new java.awt.event.MouseAdapter() {
 public void mouseClicked(java.awt.event.MouseEvent evt) {
    jTable1MouseClicked(evt);
 }
});

jScrollPane1.setViewportView(jTable1);

Use the TableModel to add rows. What type of TableModel are you using? Maybe have a look at How to Use Tables — MadProgrammer
@MadProgrammer I think it is the default Table Model. It says here that 'jTable1.setModel(new javax.swing.table.DefaultTableModel(....' — Myk Agustin
@trashgod The liked you showed us says that Create dynamic table to add new entry with button . What I want is to create a new row for the input if the user " clicks " the jTable. I think I'll try MadProgrammer's suggestion — Myk Agustin
Maintain a reference to the instance of the DefaultTableModel (making sure you apply it to the JTable), when you need to use one of the add methods of the DefautTableModel to add new data to it. It will automatically update the table — MadProgrammer

Razin Razin · Accepted Answer · 2016-09-16T13:47:06

To add a row to a jTable you can simply use this. Keep in mind that the input must be an array.

DefaultTableModel tableModel = (DefaultTableModel) table.getModel(); tableModel.addRow(input);

How to add new Row by clicking in a jTable?

1 Answers