How to Install C and C++ Compilers in Ubuntu and testing your first C and C++ Program

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If you are a developer you need C and C++ Compiler for your development work.In ubuntu you can install the build-essential for C and C++ compilers.

Install C and C++ Compilers in Ubuntu

sudo aptitude install build-essential

This will install all the required packages for C and C++ compilers

Testing C and C++ Programs

Compiling Your first C Programs

Now you need to open first.c file

sudo gedit first.c

add the following lines save and exit the file

Firstly compile the code using the following command

cc -c first.c

that would produce an object file you may need to add to the library.

then create an executable using the following command

cc -o first first.c

Now run this executable using the following command

./first

Output should show as follows

Hello, world

Compiling your first C++ program

If you want to run c++ program follow this procedure

g++ is the compiler that you must use.

you should use a .cpp file extension rather than a .c one

You need to create a file

sudo gedit first.cpp

add the following lines save and exit the file

Run your C++ Program using the following command

g++ first.cpp -o test

./test

Output should show as follows

Hello World!

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160 thoughts on “How to Install C and C++ Compilers in Ubuntu and testing your first C and C++ Program

  1. after entering “sudo aptitude install build-essential” it asks me for password ..but my keyboard stops working.. plz help..

    [Reply]

    BuriaRoza Reply:

    I thought mine wasn’t working when I first tried it as well. Type in the password anyway, even though it looks like you aren’t typing on the screen, then press enter. That works for me.

    [Reply]

    bishal Reply:

    This is the security of ubuntu. it gets typed but you can’t see actually.

    [Reply]

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