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C programming ii
- 1. C Programmin g LET’S GET INTO IT!!
- 2. How to get started? The best way to learn any new language or programming language is by applying i.e. in case of programming language by writing simple and basic codes in it. And there’s that famous sentence or sentence-ling to do all your experimentations on: “Hello World!” So, your first step towards learning the language will be to print this. To do so, you have to first right the text somewhere, then compile it (make it read by the computer), load it and then by running it you can print it.
- 3. The Syntax #include <stdio.h> int main () //you can use void main() or main() { Printf (“Hello World!”); return 0; /* in case of main() you can use getch(), but for void main() there’s no need of anything*/ } For your first C program
- 4. How to make your computer understand what to do? Human being speak languages that is interpretable by human beings but not machines. The general language for machines has been denoted by ‘I’ and ‘O’ or 1 and 0, where I/1 denotes the upstate of any signal and O/0 denotes the downstate. Though we can understand and interpret everything in this binary language (presence of only two enitities) but if we have to convert the human language (known as High-level languages) into binary then it will be a work for eternity. This is where Compilers come into play. Basically compiler is a program that converts and reads out the instructions written in human language to binary language to the computer, so that it can interpret the instructions and check for errors and execute them. Role of a Compiler
- 5. Different Compilers 1) Turbo C++ - for both C and C++, old-fashioned command prompt like (https://developerinsider.co/downloading/?download=https://github.com/vineetchoudhary/turbocp p/releases/download/v3.2/Turbo.C.3.2.zip?raw=true&after=https://developerinsider.co/c-and-cpp- insider/) 2) Dev C++ - for both C and C++, advanced and new generation (https://sourceforge.net/projects/orwelldevcpp/) 3) Codeblocks – for many languages like C, C++, Java and more (http://www.codeblocks.org/downloads) 4) Notepad – If you write the program syntax and save it with program extension ‘.c’ it will be saved automatically as a C program file and then you have to execute it through command prompt.
- 6. Compiler vs Interpreter COMPILER 1. Scans the entire program and translates it as a whole into machine code. 2. Compilers usually take a large amount of time to analyze the source code. However, the overall execution time is comparatively faster than interpreters. 3. Generates intermediate object code which further requires linking, hence requires more memory. 4. Programming languages like C, C++, Java use compilers. INTERPRETER 1. Translates program one statement at a time. 2. Interpreters usually take less amount of time to analyze the source code. However, the overall execution time is comparatively slower than compilers. 3. No intermediate object code is generated, hence are memory efficient. 4. Programming languages like JavaScript, Python, Ruby use interpreters.
- 7. Program execution in Turbo C++
- 8. Program execution in Dev C++
- 9. Program execution in Codeblocks
- 10. Program Execution in Ubuntu/Linux