devxlogo

Compressing a File with MS Visual J# .NET

Compressing a File with MS Visual J# .NET

The Microsoft Visual J# .NET 1.1 Class Library (vjslib.dll) contains methods you can use to compress a file. The following code demonstrates how to use them.

/* Code to zip a file/folder using Visual J# library */using System;using System.IO;using java.util.zip;using java.util;using java.io;namespace Zipper{ /// <summary> /// This Class provides methods to Zip a file vjslib /// c:windowsmicrosoft.netframeworkv1.1.4322vjslib.dll ///   public class Zipper {   #region Constructor     public Zipper(){}   #endregion Constructor		   #region Void Methods    /*CreateZipFile Method expects the path to be zipped.     * The path could be a directory or a single file*/   public void CreateZipFile(string sPath)   {     FileOutputStream stream1 = null;     ZipOutputStream stream2 = null;     if (System.IO.File.Exists(sPath))     {	FileInfo info2 = new FileInfo(sPath);        stream1 = new FileOutputStream(sPath.Replace                                      (info2.Extension, ".zip"));	stream2 = new ZipOutputStream(stream1);			this.ZipOneFile(stream1, stream2,  sPath);     }     else if (Directory.Exists(sPath))     {	stream1 = new FileOutputStream(sPath + ".zip");	stream2 = new ZipOutputStream(stream1);	DirectoryInfo info1 = new DirectoryInfo(sPath);	this.ZipDirectory(stream1, stream2, info1, sPath);     }     stream2.close();     stream1.close();     stream2.flush();     stream1.flush();    }    private void CopyStream(FileInputStream src, ZipOutputStream                                                             dest)    {	InputStreamReader reader1 = new InputStreamReader(src);	OutputStreamWriter writer1 = new OutputStreamWriter(dest);	while (reader1.ready())	{	  writer1.write(reader1.read());	}	writer1.flush();    }		    /*ZipDirectory Method zips the entire directory*/    private void ZipDirectory(FileOutputStream fos, ZipOutputStream                              zos, DirectoryInfo di, string SRootDir)    {	FileInfo[] infoArray2 = di.GetFiles();	foreach (FileInfo info2 in infoArray2)	{           ZipEntry entry1 = new ZipEntry               (info2.FullName.Substring(SRootDir.LastIndexOf(@"")));	   entry1.setMethod(8);	   zos.putNextEntry(entry1);	   FileInputStream stream1 = new FileInputStream                                       (info2.FullName);       	   this.CopyStream(stream1, zos);	   zos.closeEntry();	   stream1.close();	}	DirectoryInfo[] infoArray1 = di.GetDirectories();	foreach (DirectoryInfo info1 in infoArray1)	{	   this.ZipDirectory(fos, zos, info1, SRootDir);	}     }     /*ZipOneFile Method zips the file*/     private void ZipOneFile(FileOutputStream fos, ZipOutputStream                                              zos, string sFullName)     {	ZipEntry entry1 = new ZipEntry(sFullName.Substring                            (sFullName.LastIndexOf(@""))); 	entry1.setMethod(8);	zos.putNextEntry(entry1);	FileInputStream stream1 = new FileInputStream(sFullName);	this.CopyStream(stream1, zos);	zos.closeEntry();	stream1.close();     }     #endregion Void Methods  }}
See also  Monetize TikTok For Your Business
devxblackblue

About Our Editorial Process

At DevX, we’re dedicated to tech entrepreneurship. Our team closely follows industry shifts, new products, AI breakthroughs, technology trends, and funding announcements. Articles undergo thorough editing to ensure accuracy and clarity, reflecting DevX’s style and supporting entrepreneurs in the tech sphere.

See our full editorial policy.

About Our Journalist