radiobuttonlistener.java

JAVA编的校园卡系统简单程序

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

public class RadioButtonListener implements ActionListener
{
	MainGUI x;

	RadioButtonListener(MainGUI a)
	{
		x=a;
	}

	public void actionPerformed(ActionEvent e)
	 //这些代码的主要作用是依据用户的操作决定选择哪些控件要显示,哪些要隐藏
	 //比如你按下"登录"单选按钮,则界面上只有卡号和密码输入框是可见的,其他同理
	{
		if(e.getActionCommand().equals("登    录"))
		{
			x.txtCardNo.setVisible(true);
			x.pdPassword.setVisible(true);//
			x.pdNewPassword.setVisible(false);//
			x.txtDeposit.setVisible(false);
			x.txtComBalance.setVisible(false);
			x.lblOperationType.setText("登    录");
		}
		else if(e.getActionCommand().equals("修改密码"))
		{
			x.txtCardNo.setVisible(true);
			x.pdPassword.setVisible(true);//
			x.pdNewPassword.setVisible(true);//
			x.txtDeposit.setVisible(false);
			x.txtComBalance.setVisible(false);
			x.lblOperationType.setText("修改密码");
		}
		else if(e.getActionCommand().equals("消    费"))
		{
			x.txtCardNo.setVisible(true);
			x.pdPassword.setVisible(true);//
			x.pdNewPassword.setVisible(false);//
			x.txtDeposit.setVisible(false);
			x.txtComBalance.setVisible(true);
			x.lblOperationType.setText("消    费");
		}
		else if(e.getActionCommand().equals("充    值"))
		{
		    x.txtCardNo.setVisible(true);
			x.pdPassword.setVisible(true);//
			x.pdNewPassword.setVisible(false);//
			x.txtDeposit.setVisible(true);
			x.txtComBalance.setVisible(false);
			x.lblOperationType.setText("充    值");
		}
		else if(e.getActionCommand().equals("查    余"))
		{
			x.txtCardNo.setVisible(true);
			x.pdPassword.setVisible(false);//
			x.pdNewPassword.setVisible(false);//
			x.txtDeposit.setVisible(false);
			x.txtComBalance.setVisible(false);
			x.lblOperationType.setText("查    余");
		}
	}
}