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+Please, compile and run the code in Linux machine.
+Java source code is compiled and run by Java Virtual Machine (JVM) 1.6.0.
+
+Please follow the instruction below:
+
+(1) Compile the classes:
+    >javac DecompressCG.java
+	>chmod 777 *
+	
+(2) Run the tool:
+    >java DecompressCG <reference_file_name> <archive_name> <out_file_name>
+	This command will produce <out_file_name> 
+	Example: java Driver chr_ko224_21.fa chr21.nrgc.7z chr21.fa
+	The above command will produce chr21.fa
+	
+(3) 7zip executable files should be in the running directory.
+    For convenience we have already provided the executables.