Java Programming - Objects and Collections - Discussion
Discussion Forum : Objects and Collections - Pointing out the correct statements (Q.No. 8)
8.
Which statement is true for the class java.util.ArrayList?
Answer: Option
Explanation:
Yes, always the elements in the collection are ordered.
Discussion:
13 comments Page 2 of 2.
Ruhul said:
1 decade ago
In arrayList The colection are ordered in which order they are inserted.
David Sinclair said:
1 decade ago
I think this question might have a wrong answer. I see no mention of ordering in the docs and as John says above testing it shows it not to be ordered.
John said:
1 decade ago
In what way are they ordered?
I run:
java.util.ArrayList<Integer> al = new java.util.ArrayList<Integer>();
al.add(4);
al.add(3);
al.add(5);
for (Integer i : al) {
System.out.println(i);
}
And I get
4
3
5
as output. Is that ordered?
I run:
java.util.ArrayList<Integer> al = new java.util.ArrayList<Integer>();
al.add(4);
al.add(3);
al.add(5);
for (Integer i : al) {
System.out.println(i);
}
And I get
4
3
5
as output. Is that ordered?
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