Short
notes on C Programming
1. What the name of the symbol “ = “ ?
Ans:
The name of the symbol of “ = “ is assignment statement.
2. What is the function of Assignment statement?
Ans:
The function of assignment statement ( i.e. “=”) is to store the value of the right side variable
to the left side variable.
DËit Assignment statement -Gi KvR
nj, Wvb cv‡k¦©i †Kvb variable Gi
†h‡Kv‡bv value evg cv‡k¦©i ‡Kvb variable -G Rgv Kiv|
3. What do you mean by statement?
Ans:
a simple instruction or command to the computer which is used to do something
by the computer is called statement.
DËit ‡h
†QvÆ †QvÆ ûKzg Øviv Computer-†K
w`‡q KvR Kiv‡bv nq Zv‡K statement
e‡j|
4. `ywU
statement wK wKfv‡e
Avjv`v Kiv nq?
Ans:
We can separate two statements by a semicolon (;)
5. Where a semicolon can not be used?
Ans: if ev ‡h †Kvb loop – Gi c‡i semicolon(;) emv‡bv hv‡e bv|
6. What do you mean by string constant?
DËit ‡Kvb kã ev jvB‡bi `yB cv‡k¦©
Wej †Kv‡Ukb _vK‡j †mwU †K string constant
wn‡m‡e aiv nq|
7. What do you
mean by variable?
Ans: A memory space in the Hard disk where we can store a
value.
8. How can you
give a name (bvg Ki‡Yi wbqg) of a variable?
Ans:
We can give a name of a variable in 4 conditions.
(i) Only character, digit and
underscore can be used.
(ii) Must start with a character.
(iii) Blank space is not allowed in the middle
of a variable.
(iv) You can use maximum 8
characters.
9. What is the meaning of the statement “k = 3;” ?
Ans: k – Gi wfZi 3 Rgv n‡q hvI|
10. What is the function of printf() function?
DËit Bnvi
gyj KvR nj gwbU‡i †Kvb Z_¨ †`Lv‡bv| Bnv wZb fv‡e †Kvb Z_¨ gwbU‡i †`Lv‡Z cv‡i|
h_vt (i) String constant (ii) value of a
variable (iii) String constant and value of a variable at the same time.
(i)
String constant:
printf() – Gi wfZi †Kvb kã e jvB‡bi `yB cv‡k¦©
†Kvb double quotation _vK‡j
†m wU hv Av‡Q wVK AweKj ZvB monitor-G
show K‡i| wKšZz
(ii)
Value of a
variable: ‡Kvb k‡ãi `yB cv‡k¦© †Kvb double quotation bv _vK‡j †mwU variable wn‡m‡e a‡i Dnvi
wfZ‡i †h value _‡K
†mwU monitor-G
show K‡i|
(iii)
String constant +
Value of a variable at the same time.
11. What will be the output of the following statement?
(i)
printf(“I live in
Bangladesh”); Output: I live in Bangladesh
(ii)
suppose k = 3;
printf(“%d”,k); Output: 3
(iii)
suppose p = 3;
printf(“T = %d”,p); Output : T = 3
12. What is the function of scanf() function?
DËit Bnvi gyj KvR nj key board ‡_‡K †Kvb value c‡o ev scan K‡i scanf() - Gi parameter Gi wfZi store Kiv |
13. What is the
meaning the following scanf() statement?scanf(“%d”,&abul) – Gi
A_© nj †h value wU
key board †_‡K
†`Iqv n‡e †mwU Bnvi parameter variable (GLv‡b
abul) Gi wfZi interger wn‡m‡e store Ki‡e|
(i)
scanf(“%f”,&abul)
– Gi A_© nj †h value wU
key board †_‡K
†`Iqv n‡e †mwU Bnvi parameter variable (GLv‡b
abul) Gi wfZi float wn‡m‡e store Ki‡e|
