How to Add JSpinner to JTable

In this tutorial, we are going to see how to add JSpinner to a JTable. JTable is a flexible Swing component, is a subclass of JComponent class and it can be used to create a table with information displayed in multiple rows and columns. We can insert JSpinner into a JTable by customizing the code by inheriting DefaultCellEditor class and we need to redefine the method getTableCellEditorComponent().
 

 

Java Program to Add JSpinner to JTable:

import java.awt.*;
import java.awt.event.*;
import java.util.*;
import javax.swing.*;
import javax.swing.JSpinner.DefaultEditor;
import javax.swing.table.*;

public class Main 
{
    //JTable Header
    static String[] columns = {
        "Product", "Quantity"
    };
    //JTable data in a 2D table
    static Object[][] data = {
        { "Computer", 12 },
        { "Keyboard", 20 },
        { "Mouse", 30 },
        { "Printer", 6 },
        { "Scanner", 10 },
    };
  
    public static void main( String[] args ) {
        //create a frame
        JFrame f = new JFrame();
        //create a JTable
        JTable table = new JTable(data, columns);
        JScrollPane scrollPane = new  JScrollPane(table);
        //get the column model from JTable
        TableColumnModel model = table.getColumnModel();
        //get the 2nd column
        TableColumn col = model.getColumn(1);
        //set the editor
        col.setCellEditor(new MySpinnerEditor());
        f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        f.add(scrollPane);
        f.setSize(200, 150);
        f.setVisible(true);
    }
  
    public static class MySpinnerEditor extends DefaultCellEditor
    {
        JSpinner sp;
        DefaultEditor defaultEditor;
        JTextField text;

        // Initialize the spinner
        public MySpinnerEditor() {
            super(new JTextField());
            sp = new JSpinner();
            defaultEditor = ((DefaultEditor)sp.getEditor());
            text = defaultEditor.getTextField();
        }

        // Prepare the spinner component and return it
        public Component getTableCellEditorComponent(JTable table, Object 
        value, boolean isSelected, int row, int column) 
        {
            sp.setValue(value);
            return sp;
        }

        // Returns the current value of the spinners
        public Object getCellEditorValue() {
            return sp.getValue();
        }
    }
}

Output:

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