dictionary.java

一个JAVA小字典,很简单的功能实现

import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.*;
import java.io.*;
public class Dictionary extends JFrame implements ActionListener,ListSelectionListener{
     
	
	
	//four panels that hold the four parts of the dictionary;
     private JPanel upPanel;
     private JPanel rightPanel;
     private JScrollPane leftPanel;
     private JScrollPane centerPanel;
     private JPanel bottomPanel;
     
     private JLabel jbCheck;   //"单词查询提示语" 
     
     private JTextField inputTextField;  //prompt user to input words 
     
     private JTextField baiduTextField;  //enter the things searched will be done by link to www.baidu.com
     
     private JButton enterButton;       //be sure about the words 
     
     private JButton baiduButton;         //the button be used to baidu
    
     private JLabel rightLabel;         //be used to beautifulize the GUI

     private JLabel baiduLabel;         //print out the baidu icon
    
     private JLabel bottomLabel;         //set icon in the bottom
   
     private JList listArea;       //print out all the word that is near the searched word \
    
     private JTextArea outputArea;     //Print out the word's explanation
     
     private JMenuBar jmb; // 菜单栏
     private JMenu jmn1;  //"文件菜单选项"
     private JMenu jmn2;  //选项菜单选项
     private JMenu jmn3; // "帮助菜单选项"
     private JMenuItem jmuItem1; //添加词汇项目
     private JMenuItem jmuItem2; //更换词库项目
     private JMenuItem jmuItem3;  //退出项目
     private JMenuItem jmuItem4;  //备份词库项目
     private JMenuItem jmuItem5;  //关于项目
     
        
     
    //create an array to save the file's data
    public static String[] libString=new String[1000000];            //all the words and explanation from the library
     
    //all the explanations to words from the library
     private int wordIndex=0;
     private String[] nearbyWord;          //all the related words
     private String inputWord;             //the word that that user want to search
     private String inputTextToInputWord;  //the explanation that will show to the user
     
     
     
public static void main(String[] args) throws FileNotFoundException {

	int i=0; 
	
	Dictionary dic=new Dictionary();
	dic.pack();
	dic.setTitle("吴氏小小小词典(不再寒酸版)");
	dic.setLocationRelativeTo(null);     //center the frame
	dic.setSize(800,600);
	dic.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	dic.setVisible(true);
	
	
	//load the words from the library file
	File libFile=new File("library.txt"); 
    
	if(!libFile.exists()){
		System.out.println("The file doesn't exists");
		System.exit(0);
	}
	
	Scanner libReader=new Scanner(libFile);
	
	//read the data of the file
	
	while(libReader.hasNext()){
		Dictionary.libString[i]=libReader.next();
			i++;
		}
	
}
	
   
//the constructor
public  Dictionary(){
	
// attach a menu to a frame
	
	JMenuBar jmb = new JMenuBar();
	Dimension d = new Dimension(30,30);
	jmb.setSize(new Dimension( d));
	
    Color jmbBack = new Color(160,216,237);
	
	jmb.setBackground(jmbBack);
	
	// add JMenuBar to the frame
	setJMenuBar(jmb);
	
	// create menu item
	
	jmn1 = new JMenu("文件");
	
	 jmn2 = new JMenu("选项");
	
	 jmn3 =  new JMenu("帮助");
	
	jmb.add(jmn1);
	jmb.add(jmn2);
	jmb.add(jmn3);
	
	// JMenuItem for the 文件
	
    jmuItem1 = new JMenuItem("添加词汇");
    jmuItem2 = new JMenuItem("删除词汇");
    jmuItem3 = new JMenuItem("退出");
    
	jmn1.add(jmuItem1);
	jmn1.add(jmuItem2);
	jmn1.add(jmuItem3);
	
	// JMenuItem for the 选项
	jmuItem4 = new JMenuItem("备份词库");
    
    
    
	jmn2.add(jmuItem4);
	
	
	jmuItem5 = new JMenuItem("关于");
	jmn3.add(jmuItem5);
	
	// set the frame's layout
	setLayout(new BorderLayout());   
	
	//the first part of the Dictionary
	upPanel=new JPanel();
	upPanel.setLayout(new FlowLayout(5));  
	
	//locate the jbCheck label;
	//make icons!!
	ImageIcon icon1=new ImageIcon("search.jpg");
	ImageIcon icon2=new ImageIcon("forward.jpg");
	ImageIcon icon3=new ImageIcon("baidu.gif");
	ImageIcon icon4=new ImageIcon("bg.jpg");
	ImageIcon icon5=new ImageIcon("boxiu.gif");
	ImageIcon icon6=new ImageIcon("boxiu.gif");
	
	jbCheck=new JLabel("单词查询",SwingConstants.CENTER);
	jbCheck.setToolTipText("在右边栏输入输入单词查询，");
	jbCheck.setIcon(icon2);

	
	jbCheck.setHorizontalAlignment(SwingConstants.CENTER);
	jbCheck.setVerticalAlignment(SwingConstants.CENTER);
	

	inputTextField=new JTextField(/*"请在此处输入查询的单词",*/35);
	
	//set the property for the inputTextField
	inputTextField.setFont(new Font("Serif",Font.PLAIN,12));
	
	//make the inputTextField exitable
	inputTextField.setEditable(true);
	
	
	
	//////baidu part
	baiduTextField=new JTextField(10);
	
	baiduTextField.setFont(new Font("Serif",Font.PLAIN,12));
	
	baiduTextField.setEditable(true);
	
	enterButton=new JButton("Search");
	enterButton.setIcon(icon1);
	baiduButton=new JButton("百度一下");
	
	
	baiduLabel=new JLabel(icon3);
	
	// add componet to the upPanel
	upPanel.add(jbCheck);
	upPanel.add(inputTextField);
	upPanel.add(enterButton);
	upPanel.add(baiduLabel);
	upPanel.add(baiduTextField);
	upPanel.add(baiduButton);
	
	//the second and the third part of the dictionary
	
	listArea=new JList();

	listArea.setFixedCellWidth(100);
	outputArea=new JTextArea();
	

	leftPanel=new JScrollPane(listArea);    //make the textareas can scroll
	leftPanel.setSize(50, 500);
	centerPanel=new JScrollPane(outputArea);
	
	//the fourth part
	rightPanel=new JPanel();
	
	rightLabel=new JLabel(/*"暂时空缺】\n 以后会加入图片等。"*/);
	rightLabel.setIcon(icon4);
	
	rightPanel.add(rightLabel);

	
	//the bottom
	bottomLabel=new JLabel(icon5);

    bottomPanel=new JPanel();
    bottomPanel.setLayout(new FlowLayout());
	bottomPanel.add(bottomLabel);
	
	//combine the four parts toghter
	add(upPanel,BorderLayout.NORTH);
	add(rightPanel,BorderLayout.EAST);
	
	add(centerPanel,BorderLayout.CENTER);
	add(bottomPanel,BorderLayout.SOUTH);
	add(leftPanel,BorderLayout.WEST);
//	initial the textfiel
	outputArea.setText("欢迎使用该词典。。。。。。。。。。。。。。。。。。。。。。。。。。。。。。\n*******该词典由   吴甲城  和  吴龙威   合作完成  ！！！！！！！！！！！！！！！");
	
/*	Handle action event from buttons and menu items*/
	
	enterButton.addActionListener(  this);
	inputTextField.addActionListener(this);