javatemplate.java

是一个 java 基础学习软件 有设计说明

//  design a template for learning java Fundamentals
//	1Java基础学习资料模板是一个按钮驱动的SWING应用。

import javax.swing.*;
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.*;
import javax.swing.border.*;

public class javaTemplate 
{
	public static void main(String[] args)
	{
	//  增加线程，显示程序启动画面	
	//		boolean  b = false; 
		startJFrame start = new startJFrame();
	//	调用javaTamplate构造方法完成有关初始化工作。
		javaTemplate t = new javaTemplate();
	// 	创建javaframe 对象，显示主窗口。JavaFrame extends Jframe.
		javaFrame frame = new javaFrame(t.fileName,t.fileContent,t.buttonName);
		frame.setTitle(t.title+t.version);
		frame.setIconImage(Toolkit.getDefaultToolkit().getImage(t.icon));
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		frame.setLocation(200,100);
	//	采用windows 窗口形式
		try
		{
			UIManager.setLookAndFeel("com.sun.java.swing.plaf.windows.WindowsLookAndFeel");
			SwingUtilities.updateComponentTreeUI(frame);		
		}catch (Exception exc) {}		
		frame.setVisible(true);	
	//	结束主程序线程。此时AWT线程继续运行。	
	}
	//  构造方法
	public javaTemplate()
	{	//	版本设置,标题，图标
		version = "1.0版";
		title = "-----java 学习基础 资料模板库----";
		icon = "about.gif";
		//  打开文件，获得 面板、按钮名称参数
		buttonName = getButtonName("buttonname.txt");
		fileName = getContent("filename.txt",true);
		fileContent = getContent("filename.txt",false);
	}
	//	从文件 获得面板按钮名称
	private String[] getButtonName(String str)
	{	
		File file = new File(str);  
		String[] content = new String [8];
		try 
		{
			BufferedReader in = new BufferedReader(new FileReader(file));
			String s = in.readLine();
			for (int i=0; s != null;i++ ) 
			{
				content[i]=s;
				s = in.readLine();
			}
			in.close();
		}catch (IOException e) 
		{
			e.printStackTrace();
		}	
		return content;
	}
	//	从文件获得显示内容信息
	private String[][] getContent(String str,boolean b)
	{
		File file = new File(str);  
		String[][] content = new String[8][];
		try 
		{
			BufferedReader in = new BufferedReader(new FileReader(file));
			String s = in.readLine();
			for (int i=0; s != null;i++ ) 
			{
				StringTokenizer t = new StringTokenizer(s);
				int k=t.countTokens();
				if(b)
				{	
					content[i/2] = new String[k];
					for(int j=0;t.hasMoreTokens();j++)
						content[i/2][j] = t.nextToken();
					b = !b;	
				}
				else
				{
					b = !b;
				}
				s = in.readLine(); 
			}
			in.close();
		}catch (IOException e) 
		{
			e.printStackTrace();
		}		
		return content;
	}
	static String version;
	static String title;
	static String icon;
	static String[] buttonName ;
	static String[][] fileName ;
	static String[][] fileContent;
}	
//	继承 JFrame ,框架设定
class javaFrame extends JFrame implements ActionListener
{
	static String[] button;
	static JPanel[] centerPanel ;
	static int[] nButton;
	public javaFrame(String[][] name,String[][] content,String[] button)
	{
	//	设置javaFrame相关参数：主窗口的大小设置为600*400像素 等
		this.button = button;
		this.setSize(WIDTH,HEIGHT);
		Container con = getContentPane();
	//	创建一个菜单条（MenuBar） 使用 javaMenuBar extends JMenuBar	
		javaMenuBar menu = new javaMenuBar();
	//	新创建的菜单条设置为主窗口的菜单条 
		this.setJMenuBar(menu);
	//	创建面板（JPanel）	
	//  创建 northPanel ，位于面板顶部，装载 显示按钮 
		JPanel northPanel = new  JPanel();
		JPanel southPanel = new JPanel();
		Border border = BorderFactory.createEtchedBorder();
		southPanel.setBorder(border);
		northPanel.setBorder(border);						
		con.add(northPanel,BorderLayout.NORTH);
		con.add(southPanel,BorderLayout.SOUTH);	
	//	在面板顶部装载norhPanel ，在nothPanel上创建 按钮
	//	分别对应顶部按钮按钮按下每个TabbedPane，出现的相应子内容
		int numOfButton = button.length;
		centerPanel = new JPanel[numOfButton];
		JButton bt[]= new JButton[numOfButton];
		nButton = new int[numOfButton];
		for(int j=0;j<numOfButton;j++)
		{
			bt[j] =	new JButton(button[j]);
			bt[j].setFont(new Font("宋体",Font.PLAIN,15));
			centerPanel[j] = new JPanel();
			northPanel.add(bt[j]);
			centerPanel[j].setBorder(border);	
			con.add(centerPanel[j],BorderLayout.CENTER);
			nButton[j]=j;
			centerPanel[j].setLayout(new BorderLayout());		
			bt[j].addActionListener(this);
		
		//	创建 TabbedPane，位于面板中间，装载 文本区		
			JTabbedPane tab = new JTabbedPane(SwingConstants.LEFT);
			int len = name[j].length;
			if(len==0)
				len=1;
			javaTextArea[] show = new javaTextArea[len];
			for(int i=0;i<len;i++)
			{
			//	创建 JTextArea ,装载学习内容
				 show[i] = new javaTextArea(8,20,content[j][i]);
			//  增加监听器	
				menuAction action = new menuAction(show[i]);				 
				show[i].addMouseListener(action);
				show[i].setEditable(false);
				show[i].setLineWrap(true);
				show[i].setWrapStyleWord(true);
			//	加滚动条,
				JScrollPane pane = new JScrollPane();
				pane.setViewportView(show[i]);
			//	创建TabbedPane 
				tab.setFont(new Font("宋体",Font.PLAIN,17));
				tab.addTab(name[j][i],pane);
				centerPanel[j].add(tab);
			}
		}
	//	southPanel 时间显示提醒休息，创建按钮 ，"退出"
		JLabel label = new JLabel("北京时间：");
		label.setFont(new Font("宋体",Font.PLAIN,15));
		southPanel.add(label);
		JLabel showTime = new JLabel();
		showTime.setFont(new Font("宋体",Font.PLAIN,15));		
		southPanel.add(showTime);		
		JButton exit = new JButton("退出");
		exit.setFont(new Font("宋体",Font.PLAIN,15));
		southPanel.add(exit);		
		exit.addActionListener(new ActionListener()
			{
				public void actionPerformed(ActionEvent e)
				{
					System.exit(1);
				}
			});	
		time t= new time(showTime);
		Thread thread = new Thread(t);
		thread.start();	
	}
	//	为按钮增加监听, 当所监听的组件出现动作时，调用相应的监听器方法： 
	public void actionPerformed(ActionEvent e)
	{
		String str = e.getActionCommand();
		for(int i =0;i<button.length;i++)
		{
			if(i==nButton[i])
			{
				centerPanel[i].setVisible(false);
				this.getContentPane().remove(centerPanel[i]);
			}
		}
		for(int i =0;i<button.length;i++)
		{	
			if(str.equals(button[i]))
			{				
				this.getContentPane().add(centerPanel[i],BorderLayout.CENTER);
				centerPanel[i].setVisible(true);
				nButton[i] = i;
			}
		}
	}
	private static int WIDTH = 760;
	private static int HEIGHT = 480;
	//	文本区 创建弹出菜单   监听鼠标事件和菜单按钮事件
	class menuAction extends MouseAdapter implements ActionListener
	{
		javaTextArea show;
		public menuAction(javaTextArea show)
		{
			this.show = show;
			 pop = new JPopupMenu();
			JMenuItem copy = new JMenuItem("复制(Copy)");
			copy.addActionListener(this);
			pop.add(copy);		
			JMenuItem select = new JMenuItem("全选(SelectAll)");
			select.addActionListener(this);
			pop.add(select);				
		}	
		final JPopupMenu pop ;
		public void mouseReleased(MouseEvent e)
		{
			if(e.isPopupTrigger())
				pop.show(e.getComponent(),e.getX(),e.getY());
		}
		public void actionPerformed(ActionEvent e)
		{
			String s = e.getActionCommand();
			if(s.equals("复制(Copy)"))
				show.copy();
			if(s.equals("全选(SelectAll)"))
				show.selectAll();
		}
	}
}
//1.	创建"文件"菜单，子菜单"退出"
//2.	创建"帮助"菜单，自菜单"java学习帮助"，"关于java学习"
//3.	为菜单增加监听器

class javaMenuBar extends JMenuBar
{
	public javaMenuBar ()
	{
	//	创建"文件"菜单，子菜单"退出"
		JMenu file= new JMenu ("文件");	
		file.setFont(new Font("宋体",Font.PLAIN,15));	
		JMenuItem exit = new JMenuItem("退出");
		file.add(exit);
		this.add(file);
	//	创建"帮助"菜单，自菜单"java学习帮助"，"关于java学习"
		JMenu help= new JMenu ("帮助");	
		help.setFont(new Font("宋体",Font.PLAIN,15));	
		JMenuItem learn = new JMenuItem("java学习帮助");
		help.add(learn);
		this.add(help);	
	//	为菜单增加监听器
		exit.addActionListener(new ActionListener()
			{
				public void actionPerformed(ActionEvent e)
				{
					System.exit(1);
				}
			});
	}
}

//使用javaTextAera extends JTextArea内容动态装入
class javaTextArea extends JTextArea
{
	public javaTextArea(int rows,int cols,String file)
	{
		super(rows,cols);
		this.setTabSize(2);
		showFile(file);
	}
	void showFile(String fileName)
	{
		File file = new File(".\\content\\"+fileName+".txt");  
		try 
		{
			BufferedReader in = new BufferedReader(new FileReader(file));
			String s = in.readLine();
			while ( s != null ) 
			{
				append(s+"\n");
				validate();
				s = in.readLine();
			}
			in.close();
		}catch (IOException e) 
		{
			e.printStackTrace();
		}
	}	
}
//启动画面
class startJFrame extends JFrame
{
	JProgressBar progress;
	String str;
	public startJFrame()
	{
		str = "java 学习";
		this.setSize(300,300);
		this.setTitle(str);
		this.setIconImage(Toolkit.getDefaultToolkit().getImage("about.gif"));
		this.setLocation(200,200);
		progress = new JProgressBar();
		this.getContentPane().add(progress,BorderLayout.SOUTH);
		Icon icon = new ImageIcon ("b.gif");
		this.getContentPane().add((new JButton(icon)),BorderLayout.CENTER);
		str = "java 学习";
		this.setVisible(true);
		startThread start = new startThread(progress,this);
		start.start();
	}
}
//进度条线程
class startThread extends Thread
{
	JProgressBar progress;
	startJFrame frame;
	public startThread(JProgressBar p,startJFrame f)
	{
		progress = p;
		frame = f;
		progress.setMinimum(0);
		progress.setMaximum(100);
	}
	public void run()
	{
		for(int i = 0;i<100;i++)
		{
			progress.setValue(i);
			try
			{
				Thread.sleep(30);
			}catch(Exception e){}
		}
		frame.setVisible(false);
	}
}
// 显示时间线程 
class time  implements Runnable 
{
	JLabel showtime ;
	public 	time(JLabel showtime)
	{
		this.showtime= showtime;
	}
	public void run()
	{
		while(true)
		{ 
			Date  peiking =new  Date();
			showtime.setText(peiking.toString()+"           ");
			try 
			{
				Thread.sleep(1000);
			}
			catch(InterruptedException e)
			{
				e.printStackTrace();
			}
		}
	}
}