代码如下:
package stopWatch;import java.awt.*;
import java.awt.event.*;public class Display extends Canvas
{
private String display ="00:00:00";
private int HH,mm,ss;
public Display()
{
setSize(80,30);
}
public void setTime(int HH,int mm,int ss)
{
System.out.println("seTime被调用了");
this.HH=HH;
this.mm=mm;
this.ss=ss;
display=this.HH+":"+this.mm+":"+this.ss;
repaint();
}
public void paint(Graphics g)
{
System.out.println("paint被调用了");
g.drawRect(210, 210, 78, 28);
g.fill3DRect(212, 212, 75, 25, true);
g.setColor(Color.WHITE);
g.drawString(display, 224, 230);
}
}package stopWatch;import java.awt.*;
import java.awt.event.*;public class TestStopWatch extends Frame
{
public static void main(String[] args)
{
// TODO Auto-generated method stub
new TestStopWatch().init();
}
public void init()
{
this.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
e.getWindow().dispose();
}
});
this.setTitle("StopWatch");
Button btn1=new Button("+1");
this.add(btn1,"North");
btn1.addActionListener(new ActionListener()
{
int HH=0,mm=0,ss=0;
public void actionPerformed(ActionEvent e)
{
Display d=new Display();
d.setTime(HH, mm, ++ss);
}
});
this.add(new Display());
this.setVisible(true);
this.setSize(500,500);
}
}
package stopWatch;import java.awt.*;
import java.awt.event.*;public class Display extends Canvas
{
private String display ="00:00:00";
private int HH,mm,ss;
public Display()
{
setSize(80,30);
}
public void setTime(int HH,int mm,int ss)
{
System.out.println("seTime被调用了");
this.HH=HH;
this.mm=mm;
this.ss=ss;
display=this.HH+":"+this.mm+":"+this.ss;
repaint();
}
public void paint(Graphics g)
{
System.out.println("paint被调用了");
g.drawRect(210, 210, 78, 28);
g.fill3DRect(212, 212, 75, 25, true);
g.setColor(Color.WHITE);
g.drawString(display, 224, 230);
}
}package stopWatch;import java.awt.*;
import java.awt.event.*;public class TestStopWatch extends Frame
{
public static void main(String[] args)
{
// TODO Auto-generated method stub
new TestStopWatch().init();
}
public void init()
{
this.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
e.getWindow().dispose();
}
});
this.setTitle("StopWatch");
Button btn1=new Button("+1");
this.add(btn1,"North");
btn1.addActionListener(new ActionListener()
{
int HH=0,mm=0,ss=0;
public void actionPerformed(ActionEvent e)
{
Display d=new Display();
d.setTime(HH, mm, ++ss);
}
});
this.add(new Display());
this.setVisible(true);
this.setSize(500,500);
}
}
分不多,别嫌弃,谢谢了
package stopWatch;import java.awt.*;
import java.awt.event.*;public class TestStopWatch extends Frame
{
public static void main(String[] args)
{
// TODO Auto-generated method stub
new TestStopWatch().init();
}
private Display d;
public void init()
{
this.addWindowListener(new WindowAdapter()
{
public void windowClosing(WindowEvent e)
{
e.getWindow().dispose();
}
});
this.setTitle("StopWatch"); Button btn1=new Button("+1");
this.add(btn1,"North");
btn1.addActionListener(new ActionListener()
{
int HH=0,mm=0,ss=0;
public void actionPerformed(ActionEvent e)
{
System.out.println(ss);
d.setTime(HH, mm, ++ss);
}
});
d=new Display();
d.setPreferredSize(new Dimension(250,180));
this.add(d,"Center");
this.setSize(500,500);
this.setVisible(true);
}
}
package stopWatch;import java.awt.*;
import java.awt.event.*;
import java.text.DecimalFormat;public class Display extends Canvas
{
private String display ="00:00:00";
private int HH,mm,ss;
private DecimalFormat f = new DecimalFormat("00");
public Display()
{
setSize(100,100);
}
public void setTime(int HH,int mm,int ss)
{
this.HH=HH;
this.mm=mm;
this.ss=ss;
display=f.format(this.HH)+":"+f.format(this.mm)+":"+f.format(this.ss);
repaint(); }
public void paint(Graphics g)
{
g.drawRect(210, 210, 78, 28);
g.fill3DRect(212, 212, 75, 25, true);
g.setColor(Color.WHITE);
g.drawString(display, 224, 230);
}
public void update(Graphics g)
{
g.drawRect(210, 210, 78, 28);
g.fill3DRect(212, 212, 75, 25, true);
g.setColor(Color.WHITE);
g.drawString(display, 224, 230);
}
}