Java MCQ: Which of the following is the correct way to declare a variable in Java?
Answer:
Explanation:
In Java, variable declaration follows specific syntax rules. The correct way to declare a variable includes specifying the data type followed by a valid identifier (variable name) and optionally initializing it with a value.
For example, int x = 10;
declares an integer variable named x
and assigns it the value 10. The variable name must start with a letter, dollar sign $
, or underscore _
, and cannot start with a digit.
Additionally, Java is case-sensitive, so keywords like String
must be correctly capitalized. Incorrect declarations, such as using a digit to start a variable name or incorrect data types, will result in compilation errors.
Reference links:
https://www.rameshfadatare.com/learn-java-programming/
https://www.javaguides.net/p/java-tutorial-learn-java-programming.html