Saturday, 16 March 2013

MCQ #6

Question) x = false; y = true; What is the result of x && y

  • True
  • False
Answer) False

Explanation)  This is a straightforward question. Lets revise the entire table once -

x         y          x&&y
true    true      true
true    false     false
false   true      false
false  false      false

So basically in  expression1&&(and)expression2, entire expression is false if any one of the expressions or both are false. On the other hand this evaluates to be true only when both expressions are true.

Our question represents 3rd row of the above table.The answer is therefore False. 

No comments:

Post a Comment

t> UA-39527780-1 back to top