The most practical and simple way to compress folders in Java

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// Source code to create a zip file from a given folder
// This example program recursively adds all files in the folder
// Works only with Java 7 and above
public class ZipFolder {
    public static void main(String[] args) throws Exception {
        ZipFolder zf = new ZipFolder();         
        // Use the following paths for windows
        //String folderToZip = "c:\\demo\\test";
        //String zipName = "c:\\demo\\";         
        // Linux/mac paths
        String folderToZip = "/Users/jj/test";
        String zipName = "/Users/jj/";
        ((folderToZip), (zipName));
    } 
    // Uses  to create zip file
    private void zipFolder(Path sourceFolderPath, Path zipPath) throws Exception {
        ZipOutputStream zos = new ZipOutputStream(new FileOutputStream(()));
        (sourceFolderPath, new SimpleFileVisitor() {
            public FileVisitResult visitFile(Path file, BasicFileAttributes attrs) throws IOException {
                (new ZipEntry((file).toString()));
                (file, zos);
                ();
                return ;
            }
        });
        ();
    }
}

Decompression-t 

//Method 1:public void unZip(String zipfile) throws IOException {
  //Check whether it is a zip file and determine whether the file exists  checkFileName(zipfile);
  long startTime = ();
  File zfile=new File(zipfile);
  //Get the parent path of the file to be decompressed  String Parent=()+"/";
  FileInputStream fis=new FileInputStream(zfile);
  Charset charset = ("GBK");//Default UTF-8// CheckedInputStream cis = new CheckedInputStream(fis,new CRC32());
  ZipInputStream zis = new ZipInputStream(fis,charset);// Enter the source zip path  ZipEntry entry=null;
  BufferedOutputStream bos=null;
  while ((entry=())!=null) {
    if (()) {
    File filePath=new File(Parent+());
    //If the directory does not exist, create    if (!()) {
      ();
    }
    }else{
    FileOutputStream fos=new FileOutputStream(Parent+());
    bos=new BufferedOutputStream(fos);
    byte buf[] = new byte[1024];
    int len;
    while ((len = (buf)) != -1) {
      (buf, 0, len);
    }
    ();
    //It will refresh when closed    ();
    }
  }
  ();
  long endTime = ();
  ("The decompression is completed! The time required is:"+(endTime-startTime)+"ms");
// ("checksum:"+().getValue());  }

  private void checkFileName(String name) {
  //Does the file exist?  if (!new File(name).exists()) {
    ("The file to be unzipped does not exist!");
    (1);
  }
  // Determine whether it is a zip file  int index = (".");
  String str=(index+1);
  if (!"zip".equalsIgnoreCase(str)) {
    ("It's not a zip file, it can't be decompressed!");
    (1);
  } 
    }