Using Protobuf

C++

$ SRC_DIR=`pwd`
$ ../protobuf-2.4.1/src/protoc -I=$SRC_DIR --cpp_out=. $SRC_DIR/addressbook.proto

$ g++ addressbook.pb.cc writeMsg.cpp -o writeMsg -I ../protobuf-2.4.1/src -L ../protobuf-2.4.1/src/.libs/ -l protobuf

$ export LD_LIBRARY_PATH=../protobuf-2.4.1/src/.libs

$ ./writeMsg address.txt

$ g++ addressbook.pb.cc readMsg.cpp -o readMsg -I ../protobuf-2.4.1/src -L ../protobuf-2.4.1/src/.libs/ -l protobuf

$ ./readMsg address.txt

Person ID: 12
  Name: me
  E-mail address: me@t.net
  Home phone #: 123533333

$ ls
addressbook.pb.cc  addressbook.proto  readMsg      writeMsg
addressbook.pb.h   address.txt        readMsg.cpp  writeMsg.cpp

Java

 ../protobuf-2.4.1/src/protoc  --java_out=../protobuf-2.4.1/java/src/main/java -I ../protobuf-2.4.1/src ../protobuf-2.4.1/src/google/protobuf/descriptor.proto

cd ../protobuf-2.4.1/java/src/main/java/com/google/protobuf
javac *
cd -

export CLASSPATH=../protobuf-2.4.1/java/src/main/java:.

javac com/example/tutorial/Addressbook.java 

javac writeMsg.java

java AddPerson

javac readMsg.java 

java ListPeople ../c++/address.txt

Person ID: 12
  Name: me
  E-mail address: me@t.net
  Home phone #: 123533333