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Which of the following statements are valid array declarations?

A. int number();

B. float average[];

C. double[] marks;

D. counter int[];

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  2. Java always provides a default constructor to a class.
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  7. The default case is always required in the switch selection structure.
  8. Which of the following command lines options generates documentation for all classes and methods?
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  10. The check box group class is a subclass of the component class.
  11. Give file is a file object, which of the following are legal statements to create a new file.
  12. A string object can not be modified after it is created.
  13. In the code below, what data types the variable x can have?
  14. It is an error if a class with one or more abstract methods is not explicitly declared abstract.
  15. Which of the following will produce a value of 10 if x = 9.7?
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  17. When present, package must be the first no comment statement in the file.
  18. The name of a Java program file must match the name of the class with the extension Java.
  19. A class may be both abstract and final.
  20. It is an error to catch the same type of exception in two different catch blocks associated with a particular…
  21. Members of a class specified as private are accessible only to the methods of the class.
  22. If you want to assign a value of 99 to the variable year, then which of the following lines can be used…
  23. Which of the following keywords are used to control access to a class member?
  24. Which of the following statements are valid array declarations?
  25. forName() is a static factory method
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