Home

All methods in an abstract class must be declared abstract.

A. True

B. False

You can do it
  1. When we implement an interface method, it should be declared as public.
  2. Consider the following statements: int x = 10, y = 15; x = ((x < y) ? (y + x) : (y - x); What will…
  3. Which javadoc tag is used to denote a comment for methods parameters?
  4. The setBackground() method is part of the class
  5. When the string objects are compared with ==, the result is true If the strings contain the same values.
  6. A thread can make second thread ineligible for execution by calling the suspend (-) method on second…
  7. The modulus operator (%) can be used only with Integer operands.
  8. DataInput is
  9. The import statement is always the first no comment statement in a Java program files.
  10. A panel can not be added to another panel.
  11. In the code below, what data types the variable x can have?
  12. A constructor must always invoke its supper class constructor in its first statement.
  13. executeUpdate(------------) returns ___________
  14. For all insert, update, delete, query operations on a database, ResultSet object creation is mandatory.
  15. In RMI we invoke client method from remote server
  16. JdbcOdbcDriver is an object of Object class
  17. The methods wait() and noify() are defined in
  18. If m and n are int type variables, what will be the result of the expression'm % n' when m = -14 and…
  19. All methods in an abstract class must be declared abstract.
  20. It is perfectly legal to assign a subclass object to a supper class reference.
  21. The expression (x == y && a<b) is true If either x == y is true or a<b is true.
  22. A method declared as static can not access non-static class members.
  23. JSP files creates ________________
  24. A static class method can be invoked by simply using the name of the method alone.
  25. Declarations can appear anywhere in the body of a Java method.
  26. A catch can have comma-separated multiple arguments.
  27. In a single Servlet class we can use____________
  28. All the bitwise operators have the same level of precedence in Java.
  29. Which of the following will produce a value of 10 if x = 9.7?
  30. Which of the following methods can be used to change the size of a size() *resize()