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Those questions are about Java. Question 2 Which of the following is NOT a wrapper class?...

Those questions are about Java.

Question 2

Which of the following is NOT a wrapper class?

Integer
Double
String
Character

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Question 3

Which of the following kinds of things may be stored directly in an ArrayList?

None of the above
primitive values
Either of these two kinds of data
object references

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Question 4

In this declaration:

ArrayList<Point> polygon;

what do we call 'Point'?

a type argument
a wrapper class
a collection
a variable

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Question 5

In this declaration:

ArrayList<Point> polygon;

what is the data type of the variable 'polygon'?

Point
None of the above
ArrayList<Point>
ArrayList
Array

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Question 6

If this method call:

myList.size()

returns the value 7, what is the range of legal values allowed for the variable x in the following method call?

myList.get( x )

1 thru 7
x may be any int value
0 thru 6
0 thru 7
engineering   Computer-Science   
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Homework Answers

Answer #1 
2)  String
3)  object references
4)  a type argument
5)  ArrayList<Point>
6)  0 thru 6

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