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Note: The star ì mark contained question specify that they are most likely to come in examination and very important. But I suggest you to read all the questions that I post on my site. |
OBJECTIVE TYPE QUESTIONS:
1. Fill in the blanks:
a) C
programming language was developed by Dennis Ritchie
b) C
language has the feature of Basic Combined Programing
Language.
c) The
line beginning with a # (hash) sign is called a
preprocessor.
d) The Comment statements are ignored by the compiler.
e) The
compiler uses different colors to display code. This is called syntax highlighting.
f) The
file extension of C program is .c.
g) The
comment statements start with ‘/*’ and ends with ‘*/’.
h) The compiler/interpreter translates a program into a form
that computer understands.
i) The
statements inside the intmain() function are enclosed within a pair of { } curly Braces.
j) A statement
in C is terminate with a Semicolon;
⁕ printf() is a standard output function
declared inside <stdio.h> header file.
⁕ printf() means print formatted text to the standard output.
⁕ scanf() stand for scan formatted string.
2. Write True or False:
a) You can
write the entire C program in one line. False
b) A
colon(:) is used to mark the end of a C statement. FALSE
c) A
multi-line comment begins with //. FALSE
d) The
line beginning with’#’ is called pre-processor or directive. FALSE
e) The
main function is the point from where all C programs starts their execution. TRUE
f) The
default extension of a C program file is .bak. FALSE
g) The
statement return0; means that program worked as exception without any error
during execution. TRUE
h) The
body of the main function is enclosed in a pair of parentheses (). FALSE
i) The
file stdio.h includes the declaration of the basic standard input-output
functions.
j) Turbo
C++ for windows provides an integrated development environment for writing,
editing, compiling, and running programs in C and C++. TRUE
⁕ You can write the entire main function in
one line. TRUE
⁕ A
semi colon(;) is used to mark the end of a C statement.
⁕ A
multi-line comment begins with /* and ends with */. TRUE
⁕ The line begins with ‘#’ is called
pre-processor directive. TRUE
⁕ The default extension of a C program file
is .CPP. TRUE
⁕ The body of the main function is enclosed
in a pair of curly braces {}. TRUE
⁕ Every statement in C program must ends with
semicolon. TRUE
3. Choose
the correct option:
a) the
extension of C program is .c
b) The
feature of Turbo C++ that uses different colors to display code is. Syntax highlighting
c) The
options in the file menu are. Save as
d) The
line that marks the beginning of the main function is intmain().
e) The
symbol used to mark the end of a C statements is ;(semi
colon)
f) The
function used in C to display the output is printf()
g)
Comments in C are marked by /* …….*/
h) The
statements of the main function are enclosed within {} (curly
braces).
i) The
last statement of the main function is return0:
j) The
Symbol at the beginning of the pre-processor directive is # (hash sign).
DESCRIPTIVE TYPE QUESTIONS
1. Short answer questions:
a) Who developed C programming language?
C
programming was developed by Dennis Ritchie of USA in 1972 at AT & T Bell
laboratories.
b) From which earlier language C language been derived?
The C
program language has been derived from Basic Combined Programing Language (BCPL).
It is also called B language.
C) What is comment statement?
A comment is
a non-executable code or a part of a source code ignore by the compiler. It is
a statement where the programmer places a remark or include a short explanation
within the source code for better understanding.
d) What is the advantage of writing a single line statement in each
line?
The
advantage of writing a single line statement in each line is that it makes a
program more readable and error finding become easier.
e) Which function is used to print a message in a C program?
The printf()
function is used to print message in a C program.
f) What does the pre-processor directive #include <stdio.h> do?
The
pre-processor directive #include<stdio.h> tell the compiler to include
the content of <stdio.h> file with
the source code which include the declaration of the basic standard
input-output function such as printf(), scanf() etc.
g) Why is the main() function so important?
The main()
function is so important because it is here the main function start as it is
the entry point for every C program. There should be only one line for only one
main() function in C program.
OR (You can
also write)
The main()
function is so important because it serves as the starting point for program
execution of a C program. The word main is followed by pairs of () parentheses.
h) Which statement is used to end the C program?
return0;
statement is used to end a C program.
i) What is syntax highlighting?
Syntax
highlighting is the feature in Turbo C++ that uses different colors to display
code.
j) What is the extension of C program file?
The
extension of a C program file is .c and .cpp. any one you can use.
2. Long answer question:
a) What do you mean by comment statement in a C program? Explain with an
example.
Comment
statements in a C program are the statements used by the programmers to include
short explanation within the source code for better readability of the program.
Comment are statement that are not executed by the compiler and interpreter.
Example single line comment represent as // double forward slash. It is used to
denote a single line comment. It applies comment to a single line only. Where
as multi line comment represented by /* any…text */ star with forward slash and
asterisk and ends with asterisk and forward slash. It is used to denote multi
line comments.
b) Why are programs compiled?
Program are
compiled so that it can transform a program written in high-level programing
language from the source code into object code and passes the source code
through a compiler, which translate the high-level language instruction into
abject code.
c) Write the steps to print C program on a printer.
d) What is the purpose of the statement return0;?
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Note: You shall write the answer according to
the marks of question comes in exams. |
The return0;
statements cause the main function to ends. Here, the function main returns and
integer value that is 0. It indicates that our program has been run
successfully and we terminate our main function with this return0; statement.
OR
The purpose
of the statement return0; is that it return an integer value therefore here we
are returning 0. return is a keyword which is used to return some value from a
function. It indicate that our program has been run successfully and we
terminate our main function with this return0; statement.
OR
The purpose
of the statement return0; statements is to end the main function without any
error during execution.
e) Which C
statement would you use to print the Phrase “HelloWorld”?
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Note: You shall write the answer according to
the marks of question comes in exams. |
We will use
the printf() statement to print the phrase “HelloWorld”.
OR
We will use
the printf() statement to print the phrase “HelloWorld”. Example
Intmain()
{
printf(“HelloWorld”);
return0;
}
f) What happen if you include comment within the source code of program
without using the comment characters combination /* and */?
If we
include comment within the source code of a program without using the comment
characters combination /* and */, the compiler will take them as if they were
C++ instruction and most, likely causing one or several errors messages.
g) Which statement marks the beginning of the main function?
OR
Which statement marks the beginning of the main function? Why? Give
reason
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Note: You shall write the answer according to
the marks of question comes in exams. |
The
intmain() statement marks the beginning of the main function.
OR
The intmain()
statement marks the beginning of the main function because it is the entry
point of every C program where the execution of C program starts. For this
reason, all C programs must have a main function that must be followed by the
pair of parentheses () as it is a function declaration.
h) Which menu has a compiles option?
The compile
menu has the compile options.
i) Which menu has the Run option?
The Run menu
has the Run option.
j) How
will you quite Turbo C++ IDE?
We will use
the ways that are given below to quit the Turbo C++ IDE:
1. Click on
the close button that appears on the upper right corner of the Turbo C++ window
or
2. You can
select the file menu, then click quit. or
3. Press Alt +X key together.
ADDITIONAL QUESTION & ANSWER
⁕ What is the first programing language?
The first
programing language is Basic Combined Programing Language (BCPL).
⁕ Who developed the C programming language?
Dennis
Ritchie and Brain Kernighan developed C programing language.
⁕ In which language the UNIX operating system
was coded?
The UNIX
operating system was coded in C language.
⁕ What is the work of Compiler/interpreter?
Compiler/Interpreter
work is to convert source code to object code.
⁕ What is an Integrated Development
Environment (IDE)?
The platform
by which writing, editing, compiling and running a program in C language is
done using the software called IDE Integrated Development Environment.
⁕ What is pre-processor directive? What is
its use?
A line
begins with # hash sign is such as #define, #iclude etc., are called Pre-
processor directive.
It is typically used to make source code programs easy to change and
easy to compile in different execution environments. Directive in the source
file tell the pre-processor to take specific actions.
⁕ What is include in the file stdio.h?
The file stdio.h include the declaration of the basic standard
input-output function as printf(0, scanf(),and return0; etc. so that it can
used in the program.
⁕ What do you mean by return0; statement in C
program?
The return0;
statement in C program where the return statement is followed by a return
integer 0 zero means that the program worked as expected without any error
during its execution.
⁕ What is printf() function? Why it is use?
What type of character it accepts? Give example.
printf()
function is a standard output function. It is responsible for displaying some text
on the console. It accepts sequence of characters enclosed in double quotation
(“”).
Example:
printf(“HelloWorld”);
⁕ C program is consisted of how many parts?
A C program
is basically consisted of the following parts:
1.
Pre-processor or Directive
2. Function:
Entry point of C program.
3. Comments:
4. Variables
5. Statement
& Expression
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