Compressing and Decompressing files using GZIP Format in java
The java.util.zip package provides classes compress and decompress the file contents. FileInputStream, FileOutputStream and GZIPOutputStream classes are provided in Java to compress and decompress the files.
Compressing a File using GZIPOutputStream
Methods used in the program
- read(): Reads a byte of data. Present in FileInputStream.
- write(): Writes a byte of data, Present in FileOutputStream.
void write(int b)
In this example, we have a text file in /home/saket/Desktop/GeeksforGeeks/compress.java drive under “GeeksforGeeks” Folder and we are compressing and generating the GZip file in the same folder.
File Successfully compressed
After Running the above program, It will compress the compress.java file:
Decompressing a File using GZIPOutputStream
File Successfully decompressed
Current State after compiling:
Note : Here decom.java contains the above code.
After Running the above program, It will decompress the compress.gz and a file named decompress.java will be created.
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