Explain the difference between the Boolean & operator and
the && operator?
- 1 Answers
- 8092 Views
- I also Faced
- E-Mail Answers
Answer Posted / ranganathkini
This can be explained with an example
1. The bitwise AND operator ( & )
(boolean expression1) & (boolean expression2)
to evaluate the above expression, Java first evaluates both
boolean expression1 and boolean expression2
hence only if both boolean expression1 and boolean
expression2 evaluate to true, the whole expression evaluates
to true.
2. The conditional AND operator ( && )
( boolean expression1 ) && ( boolean expression2 )
Here Java first evaluates boolean expression1, only if it
evaluates to true, boolean expression2 is evaluated. Hence
boolean expression2 is not evaluated if boolean expression1
evaluates to false.
The conditional AND operator, sometimes called the
short-circuit operator is more efficient that the bitwise
AND operator. As it saves the processing of expression2 by
first evaluating expression1 and ascertaining that the final
result will be false.
| Is This Answer Correct ? | 25 Yes | 1 No |
Post New Answer View All Answers
define the terminology association.
What are the various access specifiers for java classes?
Which collections are thread safe in java?
What is the difference between choice and list?
Can memory leak happen java?
What is static data type in java?
what is encapsulation in java? Explain
What are keywords and reserved words in java?
What are the data types supported by java? What is autoboxing and unboxing?
What is an example of a conditional statement?
what is the swingutilities.invokelater(runnable) method for? : Java thread
What is namespace in java?
What is the difference between quicksort & mergesort? When should they be used? What is their running time?
What is java algorithm?
What is the default value of byte datatype in java?
