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COSC 236 FINAL EXAM STUDY QUESTIONS AND ANSWERS
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COSC 236 FINAL EXAM STUDY QUESTIONS AND ANSWERS
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COSC 236 FINAL EXAM STUDYQUESTIONS AND ANSWERS
1. This indicates the number of elements, or values, the array can hold.
a. the new operator
b. the array's size declarator
c. the array's data type
d. the version of Java - Answer -b. the array's size declarator
2. What does the following statement do?
double[] array1 = new double[10];
a. Declares array1 to be a reference to an array of double values
b. Creates an instance of an array of 10 double values
c. Will allow valid subscripts in the range of 0 - 9
d. All of the above - Answer -d. all of the above
3. It is common practice to use a ____________ variable as a size declarator.
a. static
b. reference
c. final
d. boolean - Answer -c. final
4. What do you call the number that is used as an index to pinpoint a specific element
within an array?
a. subscript
b. global unique identifier
c. element
d. argument - Answer -a. subscript
5. Subscript numbering always starts at what value?
a. 0
, b. 1
c. -1
d. None of the above - Answer -a. 0
6. By default, Java initializes array elements with what value?
a. 0
b. 100
c. 1
d. -1 - Answer -a. 0
7. What will be the value of x[8] after the following code has been executed?
final int SUB = 12;
int[] x = new int[SUB];
int y = 100;
for(int i = 0; i < SUB; i++) {
x[i] = y;
y += 10;
}
a. 170
b. 180
c. 190
d. 200 - Answer -b. 180
8. Java performs ____________, which means that it does not allow a statement to use
a subscript that is outside the range of valid subscripts for the array.
a. active array sequencing
b. array bounds checking
c. scope resolution binding
d. buffer overrun protection - Answer -b. array bounds checking
9. In Java, you do not use the new operator when you use a(n):
a. array size declarator
b. initialization list
c. two-dimensional array
d. All of the above - Answer -b. initialization list
10. What will be the results of the following code?
final int ARRAY_SIZE = 5;
double[] x = new double[ARRAY_SIZE];
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