Java MCQ: Which of the following is not a reserved keyword in Java?
a) const
b) goto
c) implements
d) sizeof
Answer:
d) sizeof
Explanation:
The sizeof keyword is not a reserved keyword in Java. It is used in C and C++ to determine the size of a data type or variable, but Java does not have this keyword.
In Java, the size of primitive data types is predefined (e.g., int is always 32 bits), so there is no need for a sizeof operator. Other options like const and goto are reserved in Java, but they are not used. The implements keyword is used to indicate that a class implements an interface.
Understanding Java’s reserved keywords and their roles helps in avoiding syntax errors and writing correct Java programs.
Reference links:
https://www.rameshfadatare.com/learn-java-programming/
https://www.javaguides.net/p/java-tutorial-learn-java-programming.html