Which of the following are the wrapper classes?

A. Random

B. Vector

C. Byte

D. all of the above

You can do it
  1. Which javadoc tag is used to denote a comment for methods parameters?
  2. When X is a positive number the operations x>> 2 and x>>>2 both produce the same result.
  3. In the code below, what data types the variable x can have?
  4. In order to connect to a database through java program we must create _______-
  5. The use of protected keyword to a member in a class will restrict its visibility as follows:
  6. Members of a class specified as private are accessible only to the methods of the class.
  7. A class may be both abstract and final.
  8. The methods wait() and noify() are defined in
  9. Objects are passed to a method by use of call-by-reference.
  10. Which of the following string can be used as mode string for creating a RandomAccessFile object?
  11. The default case is always required in the switch selection structure.
  12. Consider the following class definition.Class Student extends String{}What happens when we try to compile…
  13. Submit button always fires doPost(...)
  14. The name of a Java program file must match the name of the class with the extension Java.
  15. Which of the following will produce a value of 22 if x=22.9:
  16. The length of a string object 's1' can be obtained using the expression s1.length.
  17. In RMI we invoke client method from remote server
  18. The expression (x == y && a<b) is true If either x == y is true or a<b is true.
  19. We would like to make a member of a class visible in all subclasses regardless of what package they…
  20. Which of the following statements are valid array declarations?
  21. putValue(...) method takes _____________________-
  22. Any class may be inherited by another class in the same package.
  23. A method declared as static can not access non-static class members.
  24. Given the codeString s = new String("abc");Which of the following calls are valid?
  25. It is perfectly legal to assign a subclass object to a supper class reference.
  26. In a single Servlet class we can use____________
  27. When we implement the Runnable interface, we must define the method
  28. If m and n are int type variables, what will be the result of the expression'm % n' when m = -14 and…
  29. Servlet has ___________
  30. A variable declared inside the for loop control can not be referenced out side the loop.