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The name of a Java program file must match the name of the class with the extension Java.

A. True

B. False

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  1. Declarations can appear anywhere in the body of a Java method.
  2. Which of the following will produce a value of 22 if x=22.9:
  3. The setBackground() method is part of the class
  4. Which of the following control expressions are valid for an if statement?
  5. The length of a string object 's1' can be obtained using the expression s1.length.
  6. In order to connect to a database through java program we must create _______-
  7. Java is fully object oriented programme.
  8. Connection, Statement are interfaces and ResultSet is a class.
  9. It is an error to catch the same type of exception in two different catch blocks associated with a particular…
  10. Any class may be inherited by another class in the same package.
  11. Which of the following statements are valid array declarations?
  12. Which key word can protect a class in package from accessibility by the classes outside the package?
  13. Declaring a method synchronized guarantees that the deadlock cannot occur.
  14. In evaluating a logical expression of type 'Boolean expression 1&& Boolean expression 2', both the Boolean…
  15. A class may be both abstract and final.
  16. class.forName(...) creates an instance of java ODBC driver
  17. The check box group class is a subclass of the component class.
  18. Any method in a supper class can be over ridden in its subclass.
  19. forName() is a static factory method
  20. Which of the following methods can be used to change the size of a size() *resize()
  21. The programmer must explicitly create the system .in and system .out objects.
  22. Which of the following will produce a value of 10 if x = 9.7?
  23. A package is a collection of
  24. Which of the following represent legal flow control statements?
  25. Which javadoc tag is used to denote a comment for methods parameters?
  26. The use of protected keyword to a member in a class will restrict its visibility as follows:
  27. In RMI we invoke client method from remote server
  28. Give file is a file object, which of the following are legal statements to create a new file.
  29. Two methods cannot have the same name in Java.
  30. Which of the following are not keywords?