1. Dev C++ Example Programs
2. How To Create A Simple Program In Dev C++
3. How To Create A Simple Program In Dev C 2017
4. How To Create A Simple Program In Dev C Sample

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Make Simple Calculator Program in C. To make a simple calculator in C programming which performs basic four mathematical operations (addition, subtraction, multiplicatin, and division) depending on the user's choice, use the switch case to identify the input operator to perform required calculation then display the result as shown here in the following program. Please help me in this. I am using dev c. You have to make a racing game in C. There are two players in your program. Traktor pro 2 free mac. They play by throwing 3 dices and then moving forward. Your program should start and ask you to press any key for a toss. After a fair toss, one of.

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In this example, you will learn about C program to make simple calculator using switch case i.e. Addition, Subtraction, Multiplication, Squares, and Division. This program uses 6 different cases for performing the different mathematical operation.

To get a very simple program in C++, you'll first need to set it up and then create programs for it. The following steps list how to get started in C++ using a very simple program.

Get a C++ Compiler

This is the first step you'd want to do before starting learning to program in C++. There are good free C++ compilers available for all major OS platforms. Download one that suits your platform or you can use the tutorialspoint.com's online compiler on https://www.tutorialspoint.com/compile_cpp_online.php

• GCC − GCC is the GNU Compiler chain that is basically a collection of a bunch of different compilers created by GNU. You can download and install this compiler from http://gcc.gnu.org/
• Clang− Clang is a compiler collection released by the LLVM community. It is available on all platforms and you can download and find install instructions on http://clang.llvm.org/get_started.html
• Visual C++ 2017 Community− This is a free C++ compiler built for windows by Microsoft. You can download and install this compiler from https://www.visualstudio.com/vs/cplusplus/

Write a C++ program

Now that you have a compiler installed, its time to write a C++ program. Let's start with the epitome of programming example's, it, the Hello world program. We'll print hello world to the screen using C++ in this example. Create a new file called hello.cpp and write the following code to it −

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Let's dissect this program.

Dev C++ Example Programs

Line 1 − We start with the #include<iostream> line which essentially tells the compiler to copy the code from the iostream file(used for managing input and output streams) and paste it in our source file. Header iostream, that allows to perform standard input and output operations, such as writing the output of this program (Hello World) to the screen. Lines beginning with a hash sign (#) are directives read and interpreted by what is known as the preprocessor.

Line 2 − A blank line − Blank lines have no effect on a program.

Line 3 − We then declare a function called main with the return type of int. main() is the entry point of our program. Whenever we run a C++ program, we start with the main function and begin execution from the first line within this function and keep executing each line till we reach the end. We start a block using the curly brace({) here. This marks the beginning of main's function definition, and the closing brace (}) at line 5, marks its end. All statements between these braces are the function's body that defines what happens when main is called.

Line 4 −

This line is a C++ statement. This statement has three parts: First, std::cout, which identifies the standard console output device. Second the insertion operator << which indicates that what follows is inserted into std::cout. Last, we have a sentence within quotes that we'd like printed on the screen. This will become more clear to you as we proceed in learning C++.

In short, we provide cout object with a string 'Hello worldn' to be printed to the standard output device.

Note that the statement ends with a semicolon (;). This character marks the end of the statement

How To Create A Simple Program In Dev C++

Compile the Program

Now that we've written the program, we need to translate it to a language that the processor understands, ie, in binary machine code. We do this using a compiler we installed in the first step. You need to open your terminal/cmd and navigate to the location of the hello.cpp file using the cd command. Assuming you installed the GCC, you can use the following command to compile the program −

How To Create A Simple Program In Dev C 2017

This command means that you want the g++ compiler to create an output file, hello using the source file hello.cpp.

Run the program

Now that we've written our program and compiled it, time to run it! You can run the program using −

How To Create A Simple Program In Dev C Sample

You will get the output −