import?java.util.*;

import?java.util.zip.*;

import?java.io.*;

class?TestZip?

{

public?void?zip(String?zipFileName,String?inputFile)throws?Exception{

zip(zipFileName,new?File(inputFile));

}

public?void?zip(String?zipFileName,File?inputFile)throws?Exception{

ZipOutputStream?out=new?ZipOutputStream(new?FileOutputStream(zipFileName));

zip(out,inputFile,"");

System.out.println("zip?done");

out.close();

}



public?void?unzip(String?zipFileName,String?outputDirectory)throws?Exception{
ZipInputStream?in=new?ZipInputStream(new?FileInputStream(zipFileName));

ZipEntry?z;

while?((z=in.getNextEntry()?)!=?null)

{

System.out.println("unziping?"+z.getName());

if?(z.isDirectory())

{

String?name=z.getName();

name=name.substring(0,name.length()-1);

File?f=new?File(outputDirectory+File.separator+name);

f.mkdir();

System.out.println("mkdir?"+outputDirectory+File.separator+name);

}

else{

File?f=new?File(outputDirectory+File.separator+z.getName());

f.createNewFile();

FileOutputStream?out=new?FileOutputStream(f);

int?b;

while?((b=in.read())?!=?-1)

out.write(b);

out.close();

}

}



in.close();

}



public?void?zip(ZipOutputStream?out,File?f,String?base)throws?Exception{

System.out.println("Zipping??"+f.getName());

if?(f.isDirectory())

{

File[]?fl=f.listFiles();

out.putNextEntry(new?ZipEntry(base+"/"));

base=base.length()==0?"":base+"/";

for?(int?i=0;i<fl.length?;i++?)

{

zip(out,fl,base+fl.getName());

}

}

else

{

out.putNextEntry(new?ZipEntry(base));

FileInputStream?in=new?FileInputStream(f);

int?b;

while?((b=in.read())?!=?-1)

out.write(b);

in.close();

}



}

public?static?void?main(String[]?args)?

{

try{

TestZip?t=new?TestZip();

t.zip("c:\\test.zip","c:\\test");

t.unzip("c:\\test.zip","c:\\test2");

}

catch(Exception?e){e.printStackTrace(System.out);}

}

}