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Q.1 What are operators and what are the various types of operators available in Java?
Answer: Operators are special symbols used in expressions. The following are the types of operators:
- Arithmetic operators
- Assignment operators
- Increment & Decrement operators
- Logical operators
- Bitwise operators
- Comparison/Relational operators
- Conditional operators
Q.2 The ++ operator is used for incrementing and the -- operator is used for decrementing.
(a). True
(b). False
Answer: (a). True
(a). True
(b). False
Answer: (a). True
(a). True
(b). False
Answer: (a). True
Answer: OR(|), AND(&), XOR(^) AND NOT(~).
Answer: The % operator is the modulo operator or reminder operator. It returns the reminder of dividing the first operand by second operand.
(a). 3
(b). 5
(c). 7
(d). 9
Answer: (c). 7
Answer: No.
Answer: Yes
Answer: No. As an object cannot be cast to a primitive value and here we are casting byte object into double.
Answer: The Order of precedence the order in which operators are evaluated in expressions. Associatively determines whether an expression is evaluated left-right or right-left.
Answer: Java support = operator.
Answer: The prefix form returns the increment or decrement operation and returns the value of the increment or decrement operation.
The postfix form returns the current value of all of the expression and then performs the increment or decrement operation on that value.
(a). The double value 8.6
(b). The string "8.6"
(c). The long value 8.
(d). The String "5.453.2"
Answer: (d). The String "5.453.2"
x = 5; y = ++x;
Answer: x = 6; y = 6
x = 5; z = x++;
Answer: x = 6; z = 5
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