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package AllAboutFile;
/**
 *
 * @author lucifer
 */
import java.awt.*;
import java.awt.event.*;
import java.io.*;
public class FileViewer extends Frame implements ActionListener{
     String directory;
     TextArea textarea;                                  //ÏÔʾÎı¾ÄÚÈݵĵط½
     public FileViewer(){
          this(null,null);
     }
     public FileViewer(String filename){
          this(null,filename);
     }
     public FileViewer(String directory,String filename){
          super();
          addWindowListener(
               new WindowAdapter(){
                    public void WindowClosing(WindowEvent e){
                         dispose();
                    }
               }
          );
          //Create TextArea
          textarea = new TextArea("",24,80);
          textarea.setFont(new Fo


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package cf.java.study.java.io;
import java.io.File;
import java.io.FileInputStream;
import org.apache.commons.io.FileUtils;
import org.apache.commons.lang.StringUtils;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
public class FileTests {
@Before
public void set ......

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