Compiling with G++
// Compile & Link with Output-Filename specified
g++ main.cpp -o mult35
// Compile and create object code for both files
// -c = Compiler Stage -o = Output Stage -Wall = with all Warnings
g++ -c helloWorld.cpp hello.cpp
// Link those object files together and create Output-File main.exe
g++ -o main.exe helloWorld.o hello.o