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The peer to peer network file system is implemented using JAVA. This project specification attempts to cover all aspects of the network file system that is going to be developed. The bare minimum API that will be offered to application programmers will be of: 

int open(String filename, char operation);
int close(String filename);
int read(String filename, char buf[], int offset, int bufsize);
int write(String filename, char buf[], int offset, int bufsize);