Question

I have two String arrays a,b.

String a [] = {"one","two","three"};
String b [] = {"one","Two","Three","four"};

I need to check whether both arrays are same or not , with case Insensitive .
I know , the following piece of code is perfect for case sensitive.

List <String> l1 = Arrays.asList(a);
List <String> l2 = Arrays.asList(b);
System.out.println(l2.containsAll(l1));  

Is there any other way to compare two string array (case Insensitive ) using collection?

Answer 1

Finally , I used TreeSet with case insensitive comparator.

Example :

 String [] oldVal = {"one","two","three","Four"};
 String [] newVal = {"one","Two","Three","four"};

 Set <String> set1 = new TreeSet <String> (String.CASE_INSENSITIVE_ORDER);
 Set <String> set2 = new TreeSet <String> (String.CASE_INSENSITIVE_ORDER);

 set1.addAll(Arrays.asList(oldVal));
 set2.addAll(Arrays.asList(newVal));

 System.out.println("--Using Tree Set --- "+ set1.containsAll(set2));  // Return True

Thanks Guys..