Understanding Static Members and Java Docs

What is a static variable in Java?

• A static variable is a class-level variable shared among all instances of the class.

• A static variable is a variable that exists only during the execution of a method.

• A static variable is a variable that cannot be changed once initialized.

• A static variable is a method-level variable unique to each instance.

How do you declare a static variable in a class?

• static var variable_name;

• static : variable_name;

• variable_name static;

• static variable_name;

What is the main advantage of using static variables?

• They are faster than local variables in all cases.

• They are automatically deleted after the function call ends.

• The main advantage of using static variables is that they maintain their value between function calls.

• They can only be used in classes, not in functions.

Can static variables be accessed without creating an instance of a class?

• Yes, static variables can be accessed without creating an instance of a class.

• Static variables cannot be accessed from outside the class.

• Static variables require an object to be instantiated first.

• Static variables can only be accessed through an instance of a class.

What happens to a static variable when the class is loaded?

• Static variables are deleted when the class is loaded.

• Static variables are initialized and allocated memory when the class is loaded.

• Static variables are initialized but not allocated memory when the class is loaded.

• Static variables are only initialized when they are accessed for the first time.

What is the syntax for writing a Java Doc comment?

• /* This is a Java Doc comment */

• // This is a Java Doc comment

• # This is a Java Doc comment

• /** This is a Java Doc comment */

How do you start a Java Doc comment?

• /**

• # This is a comment

• // This is a comment

What is the purpose of Java Doc comments?

• To define the main method in a Java program.

• To provide inline comments for debugging purposes.

• The purpose of JavaDoc comments is to generate API documentation for Java code.

• To improve the performance of Java applications.

Which tag is used to describe a method's parameters in Java Doc?

• @args

• @paramsList

• @param

• @method

What does the @return tag indicate in a Java Doc comment?

• Indicates the return value of a method.

• Indicates the method's exceptions.

• Indicates the method's parameters.

• Indicates the method's access level.