Java Operators Quiz - MCQ - Multiple Choice Questions

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In this blog post, we present a Java Operators quiz to test your knowledge and understanding of operators in the Java programming language. 

Operators play a crucial role in performing various operations on data, including arithmetic, assignment, logical operators, comparison, and more. Let's dive into the quiz questions and see how well you can tackle these challenges!

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The answer and explanation of each question have given at the end of this post.

1. Which operator is used for equality comparison in Java?

a) +

b) =

c) ==

d) &&

Answer:

c) ==

Explanation:

The relational operator in Java is used to compare two values. The == operator is used to check if two values are equal or not.

2. Which operator is used for arithmetic addition in Java?

a) +

b) -

c) *

d) /

Answer:

a) +

Explanation:

The + operator is used for arithmetic addition in Java.

3. What is the output of the following program?

public class Main {
    public static void main(String[] args) {
        int x = 10;
        int y = x++;
        System.out.println(y);
    }
}

a) 10

b) 11

c) 9

d) Compile-time error

Answer:

a) 10

Explanation:

The postfix increment operator (x++) first assigns the value of x to y, and then increments the value of x. Therefore, the value of y is 10.

4. Which operator is used for performing logical AND in Java?

a) &&

b) ||

c) !

d) &

Answer:

a) &&

Explanation:

The && operator is used for logical AND in Java.

5. What is the output of the following program?

public class Main {
    public static void main(String[] args) {
        int x = 5;
        int y = 2;
        int result = x % y;
        System.out.println(result);
    }
}

a) 2

b) 2.5

c) 1

d) 0

Answer:

c) 1

Explanation:

The % operator is used for finding the remainder of the division operation. In this case, 5 divided by 2 leaves a remainder of 1.

6. What is the output of the following program?

public class Main {
    public static void main(String[] args) {
        boolean a = true;
        boolean b = false;
        boolean result = a || b;
        System.out.println(result);
    }
}

a) true

b) false

c) Compile-time error

d) Runtime error

Answer:

a) true

Explanation:

The || operator performs a logical OR operation. When one of the operands is true, the result is true.

7. What is the output of the following program?

public class Main {
    public static void main(String[] args) {
        int x = 7;
        int y = 3;
        System.out.println(x > y ? "x is greater" : "y is greater");
    }
}

a) x is greater

b) y is greater

c) true

d) false

Answer:

a) x is greater

Explanation:

The ternary operator (?:) evaluates the condition x > y. If the condition is true, "x is greater" is printed; otherwise, "y is greater" is printed.

8. Which operator is used to increment a variable by one in Java?

a) ++

b) --

c) +=

d) *=

Answer:

a) ++

Explanation:

The ++ operator is used to increment a variable by one in Java.

9. Which operator is used for performing string concatenation in Java?

a) +

b) -

c) *

d) /

Answer:

a) +

Explanation:

The + operator is used for string concatenation in Java.

Conclusion

Congratulations on completing our Java Operators Quiz! These questions tested your knowledge of various operators in Java, including arithmetic, assignment, logical operators, comparison, and more. Understanding operators is crucial for performing different operations on data in Java programming.

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Check out 100+ quiz questions: 100+ Quiz Questions to Test Your Java, Spring Boot, Microservices, Hibernate, REST API Skills

Keep exploring and practicing to enhance your skills in working with operators effectively!

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