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    <p>My C# code to compress is </p> <pre><code> private string Compress(string text) { byte[] buffer = Encoding.UTF8.GetBytes(text); MemoryStream ms = new MemoryStream(); using (GZipStream zip = new GZipStream(ms, CompressionMode.Compress, true)) { zip.Write(buffer, 0, buffer.Length); } ms.Position = 0; MemoryStream outStream = new MemoryStream(); byte[] compressed = new byte[ms.Length]; ms.Read(compressed, 0, compressed.Length); byte[] gzBuffer = new byte[compressed.Length + 4]; System.Buffer.BlockCopy(compressed, 0, gzBuffer, 4, compressed.Length); System.Buffer.BlockCopy(BitConverter.GetBytes(buffer.Length), 0, gzBuffer, 0, 4); return Convert.ToBase64String(gzBuffer); } </code></pre> <p>Java code to decompress the text is </p> <pre><code>private String Decompress(String compressedText) { byte[] compressed = compressedText.getBytes("UTF8"); compressed = org.apache.commons.codec.binary.Base64.decodeBase64(compressed); byte[] buffer=new byte[compressed.length-4]; buffer = copyForDecompression(compressed,buffer, 4, 0); final int BUFFER_SIZE = 32; ByteArrayInputStream is = new ByteArrayInputStream(buffer); GZIPInputStream gis = new GZIPInputStream(is, BUFFER_SIZE); StringBuilder string = new StringBuilder(); byte[] data = new byte[BUFFER_SIZE]; int bytesRead; while ((bytesRead = gis.read(data)) != -1) { string.append(new String(data, 0, bytesRead)); } gis.close(); is.close(); return string.toString(); } private byte[] copyForDecompression(byte[] b1,byte[] b2,int srcoffset,int dstoffset) { for(int i=0;i&lt;b2.length &amp;&amp; i&lt;b1.length;i++) { b2[i]=b1[i+4]; } return b2; } </code></pre> <p>This code works perfectly fine for me.</p>
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    1. PODecompress string in java from compressed string in C#
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    1. COThanks @Deepak Bhatia,I try with your java code to decompress,i didn't get any exception but its not give the result,it returns after this line of code GZIPInputStream gis = new GZIPInputStream(is, BUFFER_SIZE);.I don't have a permission to change compression method in C#.so i should as it is in C#.But in java decompression is doesn't work.Kindly help me
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    2. COSorry i didn't print exception.Now it throws java.util.zip.ZipException: Not in GZIP format
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    3. COaccording to post http://stackoverflow.com/questions/8490718/how-to-decompress-stream-deflated-with-java-util-zip-deflater-in-net, http://stackoverflow.com/questions/6522778/java-util-zip-deflater-equivalent-in-c-sharp the default deflater used in C# is not having any java equivalent that's why users prefer Gzip, Ziplib or some other zip techniques. But if you find one do post the answer as it will help other users too
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