Search & Filtering
Java | JSP | JSF
To read objects from a file, we use the class _________________ .
A) InputObjectStream
B) ObjectInputStream
C) ObjectStream
D) ObjectInput
A) InputObjectStream
B) ObjectInputStream
C) ObjectStream
D) ObjectInput
Java | JSP | JSF
When processing all the elements of row i of a two-dimensional array named grades using a for loop with variable j, what is the condition of the for loop? _________________ .
A) j < length
B) j < grades.length
C) j <= grades.length
D) j < grades[i].length
E) j <= grades[i].length
A) j < length
B) j < grades.length
C) j <= grades.length
D) j < grades[i].length
E) j <= grades[i].length
Java | JSP | JSF
To access the number of rows in a two-dimensional array named grades, we use _________________
A) grades
B) grades[i].length
C) grades.size
D) grades.length()
E) grades.length
A) grades
B) grades[i].length
C) grades.size
D) grades.length()
E) grades.length
Java | JSP | JSF
If we use a component (i.e., call methods of that component) before instantiating it, then we will generate a ________________ at runtime.
Java | JSP | JSF
Since the private instance variables of a class are not inherited, how can the methods of a subclass access the values of these private instance variables?
Java | JSP | JSF
13. When processing all the elements of a column of a two-dimensional array, what possible runtime error do we have do worry about that the number of column elements may not be constant across all rows.
Java | JSP | JSF
15. Since the private instance variables of a class are not inherited, how can the methods of a subclass access the values of these private instance variables?
Java | JSP | JSF
17. The interface concept is Java's way of implementing ___________ inheritance.
Java | JSP | JSF
25. For an object of a class to be written to a file, that class must implement the _____________ interface.
Java | JSP | JSF
26. Since the readObject method returns a generic object, what must we do with the returned object?
