CSIS 212 Final Exam ALL ANSWERS 100% CORRECT AID GRADE A+

CSIS 212 Final Exam ALL ANSWERS


100% CORRECT AID GRADE A+

Which statement below could be used to simulate the outputs of tossing a quarter to
get heads or tails? Suppose randomNumbers is a SecureRandom object.
Selected randomNumbers.nextInt(2);
Answer:
• Question 2
3 out of 3 points

Overloaded methods always have the same .
Selected method name
Answer:
• Question 3
3 out of 3 points

The identifiers in an enumeration .
Selected must be unique.
Answer:
• Question 4
3 out of 3 points

Declaring main as static allows the JVM to invoke main .
Selected without creating an instance of the class in which main is declared.
Answer:
• Question 5
3 out of 3 points

Variables should be declared as fields only if .

, Selected they are required for use in more than one method or their values must be
Answer: saved between calls to the class’s methods
• Question 6
3 out of 3 points

The java.text package contains classes for manipulating all of the following items
except .
Selected classes
Answer:
• Question 7
3 out of 3 points

Which set of statements totals the items in each row of two-dimensional array items, and
displays each row’s total?


Selected
Answer: for (int row = 0; row < items.length; row++) {
int total = 0;


for (int column = 0; column < items[row].length;
column++) {
total += items[row][column];


System.out.printf("Row %d's total is %d%n", row,
total);
}
• Question 8
3 out of 3 points

Which of the following statements is false?
Selected When an argument is passed by reference, the called method can
Answer:
access the argument’s value in the caller directly but cannot modify it.
• Question 9
3 out of 3 points

A programmer must do the following before using an array:
Selected declare then create the array.
Answer:
• Question 10
0 out of 3 points

How many Book objects are created by the following statement?
Book[] books = new Book[10];
Selected None of the above.
Answer:
• Question 11