import java.awt.event.KeyEvent;
import java.awt.event.KeyListener;
import javax.swing.*; 

public class Demo10 extends JFrame implements KeyListener{

    /**
     * 
     */
    private static final long serialVersionUID = 1L;
    GlobalVari_5 gv = new GlobalVari_5();

    public Demo10(){
        this.setTitle("键盘事件处理");
        this.setSize(300, 200);
        this.setLocationRelativeTo(this);// 窗口居中
        this.setVisible(true);
        this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);// 窗口关闭动作处理
        this.addKeyListener(this);// 添加注册键盘事件监听器
        this.gv.setVisible(false);
    }

    @Override
    public void keyPressed(KeyEvent arg0){// 敲击
    }

    @Override
    public void keyReleased(KeyEvent arg0) {// 按下
        if (arg0.getKeyCode() == 114) {// 114 F3对应的编码
            Demo10.print();
            gv.setVisible(true);
        }
    }

    @Override
    public void keyTyped(KeyEvent arg0) {// 释放
    }

    public static void main(String[] args) {
        new Demo10();
    }

    public static void print() {
        System.out.println("Running!");
    }
}

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.event.MouseEvent;
import java.awt.event.MouseListener;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.util.Vector;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.event.ListSelectionEvent;
import javax.swing.event.ListSelectionListener;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.DefaultTableModel;

public class GlobalVari_5 extends JFrame{
    private static final long serialVersionUID = 1L;
    
    private static double select = 0;
    private static int rowIndex = 0;

    //  /表格方法使用  
    public GlobalVari_5(){
        init();

        this.setTitle("Global Variables");
        this.setSize(new Dimension(650, 400));
        this.setLocationRelativeTo(null);
        this.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
        this.setVisible(true);
        this.setLayout(null);
        this.setResizable(false);
    }

    private void init(){
        Vector<String> colHeader = new Vector<String>();
        colHeader.add("Variable");
        colHeader.add("Value");
        colHeader.add("Time");

        Vector<Vector<String>> dataVec = new Vector<Vector<String>>();

        final JTable table = new JTable(dataVec,colHeader){
            private static final long serialVersionUID = 1L;

            public boolean isCellEditable(int row, int column){
                if(column > 1){
                    return false;
                } else {
                    return true;
                }
            }
        };

        //2设置表头行高  
        table.getTableHeader().setPreferredSize(new Dimension(0,30));  
        //3设置表内容行高  
        table.setRowHeight(25);  
        //4设置单选模式  
        table.getSelectionModel().setSelectionMode(ListSelectionModel.SINGLE_SELECTION);  
        //5设置单元格不可拖动  
        table.getTableHeader().setReorderingAllowed(false);  
        //6设置不可改变列宽  
        table.getTableHeader().setResizingAllowed(false);
        //7设置列宽  
        table.getColumnModel().getColumn(0).setPreferredWidth(95);
        table.getColumnModel().getColumn(1).setPreferredWidth(55);  
        table.getColumnModel().getColumn(2).setPreferredWidth(30);    
        //注意索引越界

        DefaultTableCellRenderer right = new DefaultTableCellRenderer();
        right.setHorizontalAlignment(JLabel.RIGHT);
        table.getColumnModel().getColumn(1).setCellRenderer(right); 
        table.getColumnModel().getColumn(2).setCellRenderer(right);
        
        final JButton buttonAdd = new JButton("Add");
        final JButton buttonDel = new JButton("Delete");
        final JButton buttonCls = new JButton("Close");
        
        rowIndex = table.getSelectedRow();  
        System.out.println("index:"+rowIndex);  
        //监听事件  
        table.getSelectionModel().addListSelectionListener(new ListSelectionListener(){  
            public void valueChanged(ListSelectionEvent e){
                if(e.getValueIsAdjusting()){//连续操作  
                    rowIndex = table.getSelectedRow();  
                    if(rowIndex != -1){  
                        System.out.println("表格行被选中"+rowIndex); 
                        buttonDel.setEnabled(true); 
                        select = 1;
                    }                     
                }
            }
        });

        JScrollPane scrollPane = new JScrollPane(); 
        scrollPane.setViewportView(table);
        this.add(scrollPane);
        scrollPane.setSize(515, 350);
        scrollPane.setLocation(5, 5);

        buttonAdd.setEnabled(true);
        buttonDel.setEnabled(false);
        buttonCls.setEnabled(true);

        JPanel panel = new JPanel();
        panel.setSize(10, 350);
        panel.setLocation(520, 5);
        this.add(panel);
        
        panel.setLayout(null);
        panel.add(buttonAdd);
        buttonAdd.setSize(100, 30);
        buttonAdd.setLocation(530, 6);
        panel.add(buttonDel);
        buttonDel.setSize(100, 30);
        buttonDel.setLocation(530, 50);
        panel.add(buttonCls);
        buttonCls.setSize(100, 30);
        buttonCls.setLocation(530, 322);        

        buttonAdd.addMouseListener(new MouseListener(){
            public void mouseClicked(MouseEvent e){
                DefaultTableModel model = (DefaultTableModel)table.getModel();
                int rownum = table.getRowCount() + 1;
                model.addRow(new Object[]{"gvar" + rownum, "", new SimpleDateFormat("yyyy-MM-dd HH:mm:ss").format(new Date())});
            }

            public void mousePressed(MouseEvent e){
            }

            public void mouseReleased(MouseEvent e){
            }

            public void mouseEntered(MouseEvent e){
            }

            public void mouseExited(MouseEvent e){
            }
        });

        buttonDel.addMouseListener(new MouseListener(){
            public void mouseClicked(MouseEvent e){
                if(select == 1){
                    DefaultTableModel model = (DefaultTableModel)table.getModel();
                    model.removeRow(rowIndex);
                    select = 0;                    
                    buttonDel.setEnabled(false);
                }
            }

            public void mousePressed(MouseEvent e){
            }

            public void mouseReleased(MouseEvent e){
            }

            public void mouseEntered(MouseEvent e){
            }

            public void mouseExited(MouseEvent e){
            }
        });
        
        buttonCls.addMouseListener(new MouseListener(){
            public void mouseClicked(MouseEvent e){
                setVisible(false);
            }

            public void mousePressed(MouseEvent e){
            }

            public void mouseReleased(MouseEvent e){
            }

            public void mouseEntered(MouseEvent e){
            }

            public void mouseExited(MouseEvent e){
            }
        });
    }  

    public static void main(String[] args){
        new GlobalVari_5();
    }
}