怎么在点击帮助后出现对话框显示帮助内容？？求助！！感谢

[qq_39333158]

代码如下：
package test;
import java.awt.*;
import java.awt.event.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

public class ppcq
{
public static void main(String args[])
{
new Hua_Rong_Road();
}
}

class Person extends Button implements FocusListener
{
int number;
Color c = new Color(255,245,170);
Person(int number,String s)
{
super(s);
setBackground(c);
this.number = number;
c = getBackground();
addFocusListener(this);
}

public void focusGained(FocusEvent e)
{
setBackground(Color.red);
}
public void focusLost(FocusEvent e)
{
setBackground(c);
}
}
class Hua_Rong_Road extends Frame implements MouseListener,KeyListener,ActionListener
{
Person person[] = new Person[10];
Button left,right,above,below;
Button restart = new Button("重新开始");
Button help = new Button("帮助");



public Hua_Rong_Road()
{
init();
setBounds(100,100,320,360);
setVisible(true);
validate();
addWindowListener( new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
System.exit(0);
}
}
);
}
public void init()
{
setLayout(null);
add(restart);
add(help);
restart.setBounds(100,320,120,25);
restart.addActionListener(this);
help.setBounds(20,320,100,25);
help.addActionListener(this);
String name[] = {"曹操","关羽","张飞","刘备","赵云","黄忠","兵","兵","兵","兵"};
for(int k = 0;k<name.length;k++)
{
person[k] = new Person(k,name[k]);
person[k].addMouseListener(this);
person[k].addKeyListener(this);
add(person[k]);
}
person[0].setBounds(104,54,100,100);
person[1].setBounds(104,154,100,50);
person[2].setBounds(54,154,50,100);
person[3].setBounds(204,154,50,100);
person[4].setBounds(54,54,50,100);
person[5].setBounds(204,54,50,100);
person[6].setBounds(54,254,50,50);
person[7].setBounds(204,254,50,50);
person[8].setBounds(104,204,50,50);
person[9].setBounds(154,204,50,50);
person[9].requestFocus();
left = new Button();
right = new Button();
above = new Button();
below = new Button();
add(left);
add(right);
add(above);
add(below);
left.setBounds(49,49,5,260);
right.setBounds(254,49,5,260);
above.setBounds(49,49,210,5);
below.setBounds(49,304,210,5);
validate();
}
public void keyTyped(KeyEvent e){}
public void keyReleased(KeyEvent e){}
public void keyPressed(KeyEvent e)
{
Person man = (Person)e.getSource();
if(e.getKeyCode()==KeyEvent.VK_DOWN)
{
go(man,below);
}
if(e.getKeyCode()==KeyEvent.VK_UP)
{
go(man,above);
}
if(e.getKeyCode()==KeyEvent.VK_LEFT)
{
go(man,left);
}
if(e.getKeyCode()==KeyEvent.VK_RIGHT)
{
go(man,right);
}
}
public void mousePressed(MouseEvent e)
{
Person man = (Person)e.getSource();
int x = -1,y = -1;
x = e.getX();
y = e.getY();
int w = man.getBounds().width;
int h = man.getBounds().height;
if(y>h/2)
{
go(man,below);
}
if(y<h/2)
{
go(man,above);
}
if(x<w/2)
{
go(man,left);
}
if(x>w/2)
{
go(man,right);
}
}
public void mouseReleased(MouseEvent e){}
public void mouseEntered(MouseEvent e){}
public void mouseExited(MouseEvent e){}
public void mouseClicked(MouseEvent e){}
public void go(Person man,Button direction)
{
boolean move = true;
Rectangle manRect = man.getBounds();
int x = man.getBounds().x;
int y = man.getBounds().y;
if(direction==below)
{y = y+50;}
else if(direction==above)
{
y = y-50;
}
else if(direction==left)
{
x = x-50;
}
else if(direction==right)
{
x = x+50;
}
manRect.setLocation(x,y);
Rectangle directionRect = direction.getBounds();
for(int k = 0;k<10;k++)
{
Rectangle personRect = person[k].getBounds();
if((manRect.intersects(personRect))&&(man.number!=k))
{
move = false;
}
}
if(manRect.intersects(directionRect))
{
move = false;
}
if(move==true)
{
man.setLocation(x,y);
}
}
public void actionPerformed(ActionEvent e)
{
dispose();
new Hua_Rong_Road();
}

}