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Operators - Objective Questions and Answers in Core Java

Questions
1 Evaluate the value of the expression?

6 - 2 + 10 % 4 + 7

A 10
B 12
C 13
D 14

Answer: Option [C]
2 Which of the following assignment operator does not exist in Java?
A >>
B %=
C >>>
D <<

Answer: Option [D]

The >>> operator does not exist in Java. The other operators are valid.

Examples: x >>=y result is x=x+y

x%=y result is x=x%y

x>>>=y result is x=x>>>y

3 What is/are highest order precedence operator(s) in Java?
A ( )
B { }
C both [A] & [B]
D None of these

Answer: Option [C]

Parentheses(), Array subscript{} and Member selection- have the same precedence.

4 The order of precedence from highest to lowest is :
A &&, /, |,{}
B %, <=, &&, =
C <, !, ==, ++
D +, -, [], !=

Answer: Option [B]
5 The && and || operators
A Combine two numeric values
B Compare two boolean values
C Combine two boolean values
D Compare two boolean values

Answer: Option [C]

Logical AND(&&) and Logical OR(||) combine two boolean values.

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