Verify the following statements by observing in detail the CPP program codes tha

Question

Verify the following statements by observing in detail the CPP program codes that you have written in previous exercises. The following statements can be true or false. #include must be written at the beginning of the program code so that the compiler will understand you are writing a program in cpp. using namespace std: is not important and can be ignored in the program codes. int main() represent the entry point (start point) of the program execution. system ("PAUSE"): is compulsory in every CPP program. return 0: is not important and can be ignored in the program codes. return 0: can be placed at the beginning of the program. {} the curly braces in the program codes can be replaced with round bracket ()

Explanation / Answer

I dont have the actual code snippet of the CPP programme Hence, I am answering this in generic .

(a)iostram is basically the library file where all the attributes for standared input and output is stored .
In order to perform all the read or write operations to the standard input/output streams it is needed.
Without including io stream the programme will not compile .
So the answer would be TRUE

(b) Using namespace std : means , like
using : You are using it
namespace : The thing you are going to use is a namespace
std : The name of the namespace is std (where features of the C++ Standard Library, such as string or vector, are declared).
Now , it tells complier that symbols that are declared in the std namespace need to be bring in the programme .
So , it is not a mandatory option
So the answer would be TRUE

(c)int main() means that function returns int value
and main function starts a programme
So the answer would be TRUE

(d)system("pause") helps the cpp console to pause the operation and wait for a keyboard input to continue.
Moreover this command only work for Windows not for the LINUX systems
So, This command is not mandatory
Hence the answer would be False

(e)Return 0 is not a mandatory option there are other ways by which the main function will return values without declaring the return 0 function
But as per the coding standard using of this is recomended .
Hence the answer would be TRUE

(f) By giving Return 0 at the begining of the programme , It will return from the main function So you will exit from the programme But , you have to use this atleast after main function .
Hence the answer would be TRUE

(g) Curly braces and Round brackets have two different meanings
Hence , We can not replace that in the programme
So , the answer would be False

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