麻烦大虾们看看，为什么鼠标方法没有实现，应该怎么改啊！
import java.awt.*;
import java.applet.Applet;
import java.awt.event.*;
import java.util.*;
public class ButtonApplet extends Applet implements ActionListener,MouseListener
{
Label lblDepartment=new Label("Department");
Label lblName=new Label("Name");
Label lblExtension=new Label("Extension");
TextField txtDepartment=new TextField("Department",20);
TextField txtName=new TextField("Name",18);
TextField txtExtension=new TextField("Extention",10);
Button btnAdd=new Button("Add to List");
TextArea txaList=new TextArea("Name Average",15,20,TextArea.SCROLLBARS_BOTH);
Calendar calCurrent=Calendar.getInstance();//import java.util.*;
TextArea txaDate=new TextArea(3,18);
int intDay=calCurrent.get(Calendar.DATE);
int intMonth=calCurrent.get(Calendar.MONTH)+1;
int intYear=calCurrent.get(Calendar.YEAR);
public void init()
{
add(lblDepartment);
add(txtDepartment);
add(lblName);
add(txtName);
add(lblExtension);
add(txtExtension);
txtExtension.addActionListener(this);//Enter监听
add(btnAdd);
btnAdd.addActionListener(this);//按扭监听
add(txaList);
txaList.setEditable(false);
txtDepartment.requestFocus();//光标定位
add(txaDate);
txaDate.setEditable(false);
}
public void actionPerformed(ActionEvent event)//import java.awt.event.*;
{
String strList=new String(txtDepartment.getText()+"\t"+txtName.getText()+"\t"+txtExtension.getText()+"\n");
txaList.append(strList);//设置文本区
calCurrent=Calendar.getInstance();
txaDate.setText("Date:"+intMonth+"/"+intDay+"/"+intYear+"\n");
txaDate.append("Time:"+calCurrent.get(Calendar.HOUR_OF_DAY)+":"+calCurrent.get(Calendar.MINUTE)+"\n");
txtDepartment.setText("");
txtName.setText("");
txtExtension.setText("");
txtDepartment.requestFocus();
showStatus("Add button clicked");
}
public void mouseClicked(MouseEvent e)
{
}
public void mousePressed(MouseEvent e)
{}
public void mouseReleased(MouseEvent e)
{}
public void mouseEntered(MouseEvent e)//后两个方法没有实现，也不知道实现什么
{
btnAdd.setForeground(Color.blue);
btnAdd.setBackground(Color.cyan);
}
public void mouseExited(MouseEvent e)
{
btnAdd.setForeground(Color.black);
btnAdd.setBackground(Color.lightGray);
showStatus("Ready");
}
};
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计算机技术与应用 → 『 Java/Eclipse 』 → [求助]为什么鼠标方法没有实现
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2006/7/27 11:13:00
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[求助]为什么鼠标方法没有实现
