How to implement the search functionality of a JTable in Java?

AWTJavaObject Oriented ProgrammingProgrammingSwing

A JTable is a subclass of JComponent for displaying complex data structures. A JTable component can follow the Model View Controller (MVC) design pattern for displaying the data in rows and columns. A JTable can generate TableModelListener, TableColumnModelListener, ListSelectionListener, CellEditorListener, RowSorterListener interfaces. We can implement the search functionality of a JTable by input a string in the JTextField, it can search for a string available in a JTable. If the string matches it can only display the corresponding value in a JTable. We can use the DocumentListener interface of a JTextField to implement it.

Example

import java.awt.*;
import javax.swing.*;
import javax.swing.event.*;
import javax.swing.table.*;
public class JTableSearchTest extends JFrame {
   private JTextField jtf;
   private JLabel searchLbl;
   private TableModel model;
   private JTable table;
   private TableRowSorter sorter;
   private JScrollPane jsp;
   public JTableSearchTest() {
      setTitle("JTableSearch Test");
      jtf = new JTextField(15);
      searchLbl = new JLabel("Search");
      String[] columnNames = {"Name", "Technology"};
      Object[][] rowData = {{"Raja", "Java"},{"Vineet", "Java Script"},{"Archana", "Python"},{"Krishna", "Scala"},{"Adithya", "AWS"},{"Jai", ".Net"}};
      model = new DefaultTableModel(rowData, columnNames);
      sorter = new TableRowSorter<>(model);
      table = new JTable(model);
      table.setRowSorter(sorter);
      setLayout(new FlowLayout(FlowLayout.CENTER));
      jsp = new JScrollPane(table);
      add(searchLbl);
      add(jtf);
      add(jsp);
      jtf.getDocument().addDocumentListener(new DocumentListener() {
         @Override
         public void insertUpdate(DocumentEvent e) {
            search(jtf.getText());
         }
         @Override
         public void removeUpdate(DocumentEvent e) {
            search(jtf.getText());
         }
         @Override
         public void changedUpdate(DocumentEvent e) {
            search(jtf.getText());
         }
         public void search(String str) {
            if (str.length() == 0) {
               sorter.setRowFilter(null);
            } else {
               sorter.setRowFilter(RowFilter.regexFilter(str));
            }
         }
      });
      setSize(475, 300);
      setDefaultCloseOperation(EXIT_ON_CLOSE);
      setLocationRelativeTo(null);
      setResizable(false);
      setVisible(true);
   }
   public static void main(String[] args) {
      new JTableSearchTest();
   }
}

Output


raja
Published on 25-Jul-2019 14:43:12
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