压缩和解压缩

import java.io.*;
import java.util.zip.*;

public class GZipCompress
 {
  public static void main(String[] args) throws IOException
   {
    // TODO 自动生成方法存根
    if (args.length != 2 )
     {
      System.out.println("Usage:/n" +
        "GZipCompress file/n" +
        "GZipCompress sourcefile desfile/n" +
        "Use GZip Compretion to Compress file to test.gz file!");
      System.exit(1);
     }
    BufferedReader in = new BufferedReader(new FileReader(args[0]));
    BufferedOutputStream out = new BufferedOutputStream(new GZIPOutputStream(new FileOutputStream(args[1])));
    
    int c;
    while ((c = in.read()) != -1) out.write(c);
    in.close();
    out.close();
    System.out.println("System read ok!");
    
    BufferedReader in2 = new BufferedReader(new InputStreamReader(new GZIPInputStream(new FileInputStream(args[1]))));
    String s;
    while ((s = in2.readLine()) != null) System.out.println(s);
    
    in2.close();
    
   }

 }