MCQs on Operators and Expressions | Java Operators

What will be the result of the expression 10 % 3 in Java?
- a) 1
- b) 3
- c) 10
- d) 0
Which operator is used for exponentiation in Java?
- a) ^
- b) **
- c) pow()
- d) Java does not have an exponentiation operator
What will be the result of the expression 7 / 2 in Java?
- a) 3.5
- b) 4
- c) 3
- d) 0
What is the result of 5 + 2 * 3 in Java?
- a) 11
- b) 16
- c) 15
- d) 21
What will be the value of x after the following expression: int x = 5 + 10 * 3;?
- a) 15
- b) 30
- c) 35
- d) 50

What will the result of the expression 5 == 5 be in Java?
- a) true
- b) false
- c) 1
- d) 0
Which operator is used to check if two values are not equal in Java?
- a) !=
- b) ==
- c) <>
- d) !==
What is the result of the expression 10 > 5 in Java?
- a) true
- b) false
- c) 1
- d) 0
Which of the following operators is used for greater than or equal to in Java?
- a) <=
- b) >=
- c) >
- d) <
What will be the result of 5 != 4 in Java?
- a) true
- b) false
- c) 1
- d) 0

Which operator is used for logical AND in Java?
- a) &
- b) &&
- c) ||
- d) |
What is the result of true && false in Java?
- a) true
- b) false
- c) 1
- d) 0
What does the || operator do in Java?
- a) Logical AND
- b) Logical OR
- c) Logical NOT
- d) None of the above
What will be the result of the expression !(true && false) in Java?
- a) true
- b) false
- c) 1
- d) 0
Which operator is used for logical NOT in Java?
- a) !
- b) &&
- c) ||
- d) ~

What does the += operator do in Java?
- a) It divides two values and assigns the result to the left operand
- b) It adds two values and assigns the result to the left operand
- c) It performs modulo operation and assigns the result
- d) It assigns the value of the right operand to the left operand
Which of the following is the correct syntax to increment the value of x by 1 in Java?
- a) x++
- b) ++x
- c) x += 1
- d) All of the above
What will the expression x++ return if x = 5 in Java?
- a) 6
- b) 5
- c) 4
- d) 0
What is the effect of x-- when x = 10 in Java?
- a) x becomes 9
- b) x becomes 11
- c) x becomes 10
- d) x becomes 0
What will be the value of x after x = 5; x *= 2; in Java?
- a) 5
- b) 10
- c) 7
- d) 15

What will be the result of 5 + 3 * 2 in Java?
- a) 16
- b) 11
- c) 10
- d) 8
What will be the result of the expression 10 / 3 + 2 in Java?
- a) 4
- b) 5
- c) 3
- d) 6
Which of the following expressions will result in a syntax error in Java?
- a) 5 = x
- b) x + y = 10
- c) 5 == x
- d) x != y
What is the result of the expression 4 * 5 / 2 in Java?
- a) 10
- b) 20
- c) 8
- d) 2
Which of the following is the correct result of the expression true || false && false in Java?
- a) true
- b) false
- c) true && false
- d) true && true

Which of the following operators in Java is used to change the sign of a number?
- a) +
- b) -
- c) !
- d) ++
Which of the following is a correct use of the ++ operator in Java?
- a) int x = 3; x++;
- b) int x = 3; ++x;
- c) x = x + 1;
- d) All of the above
In Java, what is the output of the following code snippet?csharpCopy codeint x = 4; System.out.println(--x);
- a) 5
- b) 4
- c) 3
- d) 0
Which operator is used for bitwise negation in Java?
- a) !
- b) ~
- c) ^
- d) &
What does the following expression evaluate to in Java: x = 10; y = 20; x = ++y;?
- a) 10, 20
- b) 21, 20
- c) 20, 21
- d) 20, 10

Qno	Answer
1	a) 1
2	d) Java does not have an exponentiation operator
3	c) 3
4	a) 11
5	c) 35
6	a) true
7	a) `!=`
8	a) true
9	b) `>=`
10	a) true
11	b) `&&`
12	b) false
13	b) Logical OR
14	a) true
15	a) `!`
16	b) It adds two values and assigns the result to the left operand
17	d) All of the above
18	b) 5
19	a) `x` becomes 9
20	b) 10
21	b) 11
22	a) 4
23	a) `5 = x`
24	a) 10
25	a) true
26	b) `-`
27	d) All of the above
28	c) 3
29	b) `~`
30	c) 20, 21

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