Decompress the ZIP file using zipfile in Java code

Use the java.util.zip. zipfile class to decompress the file.

You can decompress the zip, jar, and war files, but cannot decompress the rarfile.

import java.io.BufferedInputStream;import java.io.BufferedOutputStream;import java.io.File;import java.io.FileOutputStream;import java.io.IOException;import java.util.Enumeration;import java.util.zip.ZipEntry;import java.util.zip.ZipFile;public class UnZip {static final int BUFFER = 1024;public void unzip(File unZipDir, File zip) throws IOException {if (!zip.exists()) {return;}if (!unZipDir.exists()) {unZipDir.mkdirs();}if (!unZipDir.isDirectory()) {return;}    int fileCount = 0;ZipFile zipfile = new ZipFile(zip);BufferedOutputStream ds = null;BufferedInputStream is = null;ZipEntry entry = null;Enumeration entries = zipfile.entries();System.out.println("Start...");while (entries.hasMoreElements()) {try {entry = (ZipEntry) entries.nextElement();System.out.println((++fileCount)+") Extracting: " + entry);File tempFile = new File(unZipDir.getAbsolutePath() + "/"+ entry.getName());if(entry.isDirectory()){tempFile.mkdirs();continue;} else if (!tempFile.getParentFile().exists()) {tempFile.getParentFile().mkdirs();}is = new BufferedInputStream(zipfile.getInputStream(entry));int count;byte data[] = new byte[BUFFER];FileOutputStream fos = new FileOutputStream(unZipDir.getAbsolutePath()+ "/" + entry.getName());ds = new BufferedOutputStream(fos, BUFFER);while ((count = is.read(data, 0, BUFFER)) != -1) {ds.write(data, 0, count);}ds.flush();} catch (IOException ex) {throw ex;} finally {try {if (ds != null)ds.close();if (is != null)is.close();} catch (IOException e) {// ignore}}}System.out.println("Finished !");}public static void main(String[] args) {UnZip unZip = new UnZip();try {unZip.unzip(new File("C:/unzip/"), new File("C:/StockQuote1.war"));} catch (Exception e) {e.printStackTrace();}}}