本文主要是介绍JTable 学习总结，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！
// 演示JTable功能
package Table;import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.*;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
import javax.swing.table.AbstractTableModel;
import javax.swing.table.TableModel;
import javax.swing.table.TableRowSorter;/** To change this template, choose Tools | Templates and open the template in* the editor.*/
/**** @author HuFeiyan*/
public class JTableDemo extends JPanel {JTable tableView;JScrollPane scrollpane;Dimension origin = new Dimension(0, 0);JButton toUp;String[] columnNames = {"C1", "C2", "C3", "C4", "C5"};private final static int PREFERRED_WIDTH = 680;private final static int PREFERRED_HEIGHT = 600;private Object[][] data = {{"Mary", "Campione","Snowboarding", new Integer(5), new Boolean(false)},{"Alison", "Huml","Rowing", new Integer(3), new Boolean(true)},{"Kathy", "Walrath","Knitting", new Integer(2), new Boolean(false)},{"Sharon", "Zakhour","Speed reading", new Integer(20), new Boolean(true)},{"Philip", "Milne","Pool", new Integer(10), new Boolean(false)},};private boolean DEBUG = false;public static void main(String[] args) {JTableDemo t = new JTableDemo();JFrame frame = new JFrame(JTableDemo.class.getName());frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);frame.getContentPane().setLayout(new BorderLayout());frame.getContentPane().add(t, BorderLayout.CENTER);t.setPreferredSize(new Dimension(PREFERRED_WIDTH, PREFERRED_HEIGHT));frame.pack();frame.setLocationRelativeTo(null);frame.setVisible(true);}public JTableDemo() {init();}private void init() {this.setLayout(new BorderLayout());TableModel dataModel = new AbstractTableModel() {@Overridepublic int getColumnCount() {return columnNames.length;}@Overridepublic int getRowCount() {return data.length;}@Overridepublic Object getValueAt(int row, int col) {return data[row][col];}@Overridepublic String getColumnName(int column) {return columnNames[column];}@Overridepublic Class getColumnClass(int c) {return getValueAt(0, c).getClass();}@Overridepublic boolean isCellEditable(int row, int col) {// 返回false则单元格不可编辑， 前两列不能编辑// 界面上拖动列的位置不影响列的编号return col > 2;}@Overridepublic void setValueAt(Object value, int row, int col) {if (DEBUG) {System.out.println("Setting value at " + row + "," + col+ " to " + value+ " (an instance of "+ value.getClass() + ")");}data[row][col] = value;fireTableCellUpdated(row, col);if (DEBUG) {System.out.println("New value of data:");printDebugData();}}};tableView = new JTable(dataModel);TableRowSorter sorter = new TableRowSorter(dataModel);tableView.setRowSorter(sorter);tableView.setRowHeight(2, 100);scrollpane = new JScrollPane(tableView);tableView.setFillsViewportHeight(true);this.add(scrollpane, BorderLayout.CENTER);toUp = new JButton("UP");
// 选中某一行，点击UP按钮上移
toUp.addActionListener(new ActionListener() {@Overridepublic void actionPerformed(ActionEvent e) {int[] rowIndexs = JTableDemo.this.tableView.getSelectedRows();if (rowIndexs == null || rowIndexs.length == 0) {return;}int index = rowIndexs[0];if (index != 0) {Object[] temp = JTableDemo.this.data[index];JTableDemo.this.data[index] = JTableDemo.this.data[index - 1];JTableDemo.this.data[index - 1] = temp;JTableDemo.this.tableView.setRowSelectionInterval(index - 1, index - 1);for (int i = 1; i < rowIndexs.length; i++) {JTableDemo.this.tableView.addRowSelectionInterval(rowIndexs[i], rowIndexs[i]);}}printDebugData();}});JPanel u = new JPanel();final JCheckBox debug = new JCheckBox("DEBUG", DEBUG);debug.addChangeListener(new ChangeListener() {@Overridepublic void stateChanged(ChangeEvent e) {DEBUG = debug.isSelected();}});u.add(toUp);u.add(debug);this.add(u, BorderLayout.NORTH);}public int getColumnCount() {return columnNames.length;}public int getRowCount() {return data.length;}private void printDebugData() {int numRows = getRowCount();int numCols = getColumnCount();for (int i = 0; i < numRows; i++) {System.out.print(" row " + i + ":");for (int j = 0; j < numCols; j++) {System.out.print(" " + data[i][j]);}System.out.println();}System.out.println("--------------------------");}
}
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