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package com.gamvan.tools;
import java.io.BufferedReader;
import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.util.StringTokenizer;
public class FileOperate {
    private String message;
    public FileOperate() {
    } 
    /**
     * ¶ÁÈ¡Îı¾ÎļþÄÚÈÝ
     * @param filePathAndName ´øÓÐÍêÕû¾ø¶Ô·¾¶µÄÎļþÃû
     * @param encoding Îı¾Îļþ´ò¿ªµÄ±àÂ뷽ʽ
     * @return ·µ»ØÎı¾ÎļþµÄÄÚÈÝ
     */
    public String readTxt(String filePathAndName,String encoding) throws IOException{
     encoding = encoding.trim();
     StringBuffer str = new StringBuffer("");
     String st = "";
     try{
      FileInputStream fs = new FileInputStream(filePathAndName);
      InputStreamReader isr;
      if(encoding.equals("")){
       isr = new InputStreamReader(fs);
      }else{
       isr = new InputStreamReader(fs,encoding);
      }
      BufferedReader br = new BufferedReader(isr);
     &


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public class HelloWorld{
public static void main(String[] args){
out.print("Hello World!");//¼ÈÊÇÔÚÕ ......

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package java;
import java.awt.FlowLayout;
import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import javax.swing.*;
public class fontnameDome extends JFrame implements ActionListen ......
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