How can you print a statement before the main method is executed?

• A. Using a constructor
• B. Using a static method
• C. Using a static block
• D. Using an instance method

Answer: (C)

To print a statement before the main method is executed, the appropriate approach is to use a static block. A static block in Java is a block of code that runs when the class is loaded into memory, before any instance of the class is created and before the main method is executed. This makes it ideal for initializing static variables or performing actions that need to occur at the class level.

When a class is loaded, the Java Virtual Machine (JVM) executes all static blocks in the order they are defined in the class. Therefore, any statements within a static block are printed out before control is transferred to the main method. This feature is useful for logging or performing setup tasks without needing to create an instance of the class.

Other approaches, such as using a constructor, do not work, as constructors are invoked only when instances of the class are created. Static methods can also be called, but they need to be explicitly invoked; they do not automatically run on class loading like static blocks do. Lastly, instance methods cannot execute until an object of the class is instantiated, which also makes them unsuitable for the requirement to print a statement before the main method runs.