Page 77 - CA_Blue( J )_Class10
P. 77
1. Assertion (A): The += operator in Java performs addition and assignment in a single operation.
Reason (R): The += operator is a shorthand for writing x = x + y where x is a variable.
2. Assertion (A): The != operator checks whether two values are not equal.
Reason (R): The != operator is a relational operator used to compare the equality of two values.
Previous Years' Questions
1. The operator which acts on one operand is known as: [2022]
a. binary b. ternary
c. binary d. relational
Ans. c
2. The ASCII code of 'B' is [2022]
a. 67 b. 66
c. 98 d. 99
Ans. b
3. State whether the statement is True or False: [2022]
== is an assignment operator.
a. True b. False
Ans. b
4. Choose the odd one: [2022]
a. >= b. %
c. / d. *
Ans. a
5. Write a difference between unary and binary operators. [2019]
Ans.
Unary Operator Binary Operator
Uses one operand Uses two operands
Example: a++, --b Example: a+b, a/c
6. Name the operators listed below: [2017]
a. < b. ++
c. && d. ?:
Ans. a. < (Less than operator) b. ++ (Increment operator)
c. && (Logical AND operator) d. ?: (Conditional or Ternary operator)
7. Write one difference between / and % operator. [2017]
Ans.
/ operator % operator
Results quotient after dividing a number by another Results remainder after dividing a number by another
number. number.
Example: Example:
int a = 20, b = 3, c; int a = 20, b = 3, c;
c = a / b; //c=6 c = a % b; //c=2
8. Write the output: [2017]
char ch = 'F';
int m = ch;
m = m + 5;
System.out.println(m + " " + ch);
Ans. 75 F
75
Operators in Java 75

