SCJP Module-9 Question-26


 

SCJP Module-9 Question-26

The Sample code given below will test your understanding about the Collection framework in Java.

The Sample code given below will test your understanding about the Collection framework in Java.

Given below the sample code :

1 import java.util.*;
2 public class reverseLIst {
3 public static Iterator<String> reverse(List<String> mylist) {
4 Collections.reverse(mylist);
5 return mylist.iterator();
6 }
7
8 public static void main(String[] args) {
9 List<String> mylist = new ArrayList<String>();
10 mylist.add("1");
11 mylist.add("2");
12 mylist.add("3");
13 for (Object obj : reverse(mylist))
14 System.out.print(obj + ", ");
15 }
16 }

How can we correct the above code ?

1. No need of correction.

2. By replacing  " reverse(mylist)" with "Collections. reverse(mylist)" at line 13

3. By replacing "reverse(mylist)" with "mylist " at line 13.

4. By changing then 'reverse' class type.

Answer

(3)

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