Java界面“小闹钟”

  这星期编了一个界面，“小闹钟”。以下是基本组件的编程实现。

	package 小闹钟;

	import java.awt.Component;
	import java.awt.Container;
	import java.awt.FlowLayout;
	import java.awt.GridBagConstraints;
	import java.awt.GridBagLayout;
	import java.awt.Insets;
	import java.util.Date;
	import java.util.Formatter;

	import javax.swing.JButton;
	import javax.swing.JCheckBox;
	import javax.swing.JFrame;
	import javax.swing.JLabel;
	import javax.swing.JPanel;
	import javax.swing.JTextField;

	public class AlarmClock 
	{
 		private Date today;
 		private JLabel Label[];
 		private GridBagLayout gridBag;
 		private JFrame jfrmMain;
 		private Container con;
 		private JLabel intervalRadio;
 		private JCheckBox chkBox;
		private JTextField minuteText,timeText;
 
 
 		private JButton jbutOK, jbutCancel; 

 		/*设置字符串，元素为界面显示的组件名称*/
 		private final String msg[] = 
 		{
   			"当前时间","","订于","分钟后","订于","提醒","现在还差","0秒"
 		};

                /*设置函数将目标组obj件加入容器c*/
		private void addComponents(Component obj, GridBagConstraints c)
 		{
  			gridBag.setConstraints(obj,c);
  			con.add(obj);
 		}

		/*函数实现将时间类型编程字符串类型*/ 
 		private String TimeToString(Date day)
 		{
  			Formatter fmt = new Formatter();
  			fmt.format("%tT",day);
  			return fmt.toString(); 
 		}		
 
 		public  AlarmClock()
 		{
  			initAlarmClock();
  
 		}
 

		/*函数实现所有界面初始化*/
 		private void initAlarmClock()
 		{
  			int i; 
  			today = new Date();
  
  			jfrmMain = new JFrame("小闹钟");
  			gridBag = new GridBagLayout();
  
  			GridBagConstraints c = new GridBagConstraints();
  			c.fill = GridBagConstraints.BOTH;
  
  			con = jfrmMain.getContentPane();
  			con.setLayout(gridBag);
  			jfrmMain.setSize(400, 400);
  
 			Label = new JLabel[msg.length];
  
  			for(i = 0; i < Label.length; i++)
   				Label[i] = new JLabel(msg[i], JLabel.CENTER);
  
  			c.gridwidth = 1;
  			c.gridheight = 2;
  			c.insets = new Insets(0 , 0, 5, 0);
     			addComponents(Label[0],c);  
 

  			c.gridwidth = GridBagConstraints.REMAINDER;
  			Label[1].setText(TimeToString(today));
  			addComponents(Label[1],c);
  
  			c.gridwidth = 1;
  			intervalRadio = new JLabel("间隔时间");
  			addComponents(intervalRadio,c);
  			addComponents(Label[2],c);
  
  			minuteText = new JTextField("10",6);
  			addComponents(minuteText,c);
  
  			c.gridwidth =  GridBagConstraints.REMAINDER;
  			addComponents(Label[3], c);
  
  			c.gridwidth = 1;
  			addComponents(Label[6],c);
  			c.gridwidth = GridBagConstraints.REMAINDER;
  			addComponents(Label[7], c);
  
  			c.gridwidth = 1;
  
  			chkBox = new JCheckBox("蹦出来", true);
  			addComponents(chkBox, c);
  
  			JPanel panel = new JPanel();
  
  			panel.setLayout(new FlowLayout());
  			jbutOK = new JButton("确定");
  
  			jbutCancel = new JButton("取消");
  
  			panel.add(jbutOK);
  			panel.add(jbutCancel);
  			c.gridwidth = GridBagConstraints.REMAINDER;
     			addComponents(panel, c);
     
  
     			jfrmMain.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
  			jfrmMain.setVisible(true);
  
 		}
 
 		public static void main(String[] args)
 		{
 		 	new AlarmClock();
 		}

	}

           以上只完成了界面整个组件的创建，没有时间事件编程，真正的功能实现方法我还在思考中。

           界面效果图如下：