How to Extract ZIP/JAR/WAR/TAR/RAR file Using Java

Extracting ZIP/JAR/WAR/TAR/RAR file using java

Using ZipEntry and ZipInputstream classes we can extract the zip/jar/war/tar files.

here is the code snippet....


 public static void extractZipFiles(String filename) {
   try {
             // destination folder to extract the contents         
             String destinationname = "d:\\temp\\testZip\\";          

             byte[] buf = new byte[1024];
             ZipInputStream zipinputstream = null;
             ZipEntry zipentry;
             zipinputstream = new ZipInputStream(new FileInputStream(filename));
            zipentry = zipinputstream.getNextEntry();
 
           while (zipentry != null) {

                 // for each entry to be extracted
                 String entryName = zipentry.getName();
    
                 int n;
                FileOutputStream fileoutputstream;
                File newFile = new File(entryName);

              String directory = newFile.getParent();

              // to creating the parent directories
              if (directory == null) {
                   if (newFile.isDirectory()){
                         break;
                      }
             } else {
                 new File(destinationname+directory).mkdirs();
              }
    

            if(!zipentry.isDirectory()){
                       System.out.println("File to be extracted....."+ entryName);
                       fileoutputstream = new FileOutputStream(destinationname  + entryName);
                      while ((n = zipinputstream.read(buf, 0, 1024)) > -1){
                              fileoutputstream.write(buf, 0, n);
                       }
                      fileoutputstream.close();
            }
             
           zipinputstream.closeEntry();
           zipentry = zipinputstream.getNextEntry();
          }// while
  
     zipinputstream.close();
   } catch (Exception e) {
    e.printStackTrace();
   }
  }

...