Posted by : conceptedu in (Interview Questions)

C , DS and C++ Technical Questions!

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C , DS and C++ Technical Questions

1.What is meant by increment and decrement operator in C?

2.How does & differ from &&?

3.How does ++a; differ from a++?

4.How does = differ from ==?

5.with out using a temp variable can you make SWAP operation?

6.What is an operator and list out the various types of operators used in C?
C different types of operators :
1) Arithmetic operators — +,-,*,/
2) Relational operators — >,<
3) Logical operators — &&, ||
4) Assignment operators — =
5) Increment and decrement operators — ++, –
6) Conditional operators.— ? :
7) Bitwise operators — &, |, >>, <<, ^, ~
8) Special operators — , .
7.What is the importance of using precedence rules in the C operators?
Ans : Giving first preference to certain operators is to get the correct answers.

8.List out the five arithmetic operators in C.
What is the associatively rules involved in theseoperators? *, / , %, +, - .

9.What does the equality operator mean? How these differ from an assignment operator?

10.What are the bit wise logical operators?

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