OPERATORS ONE LINER PART 01

OPERATORS ONE LINER PART 01

1) What are operators and what are the various types of operators available in Java?
Ans: Operators are special symbols used in expressions.
The following are the types of operators:
Arithmetic operators,
Assignment operators,
Increment & Decrement operators,
Logical operators,
Biwise operators,
Comparison/Relational operators and
Conditional operators 
 
2) The ++ operator is used for incrementing and the -- operator is used for  decrementing.
a)True                  
b)False
Ans: a. 
 
3) Comparison/Logical operators are used for testing and magnitude.
a)True                     
b)False
Ans: a.

4) Character literals are stored as unicode characters.
a)True                      
b)False
Ans: a.

5) What are the Logical operators?
Ans: OR(|), AND(&), XOR(^) AND NOT(~).

6) What is the % operator?
Ans : % operator is the modulo operator or reminder operator. It returns the reminder of dividing the first operand by second operand.

7) What is the value of 111 % 13?
a)3                  
b)5          
c)7           
d)9
Ans : c.

8) Is &&= a valid operator?
Ans : No.

9) Can a double value be cast to a byte?
Ans : Yes

10) Can a byte object be cast to a double value ?
Ans : No. An object cannot be cast to a primitive value.