Following example compares the element of a collection by converting a string into a treeset using Collection.min() and Collection.max() methods of Collection class.
import java.util.Collections;
import java.util.Set;
import java.util.TreeSet;
class MainClass {
public static void main(String[] args) {
String[] coins = { "Penny", "nickel", "dime",
"Quarter", "dollar" };
Set set = new TreeSet();
for (int i = 0; i < coins.length; i++)
set.add(coins[i]);
System.out.println(Collections.min(set));
System.out.println(Collections.min(set,
String.CASE_INSENSITIVE_ORDER));
for(int i=0;i< =10;i++)
System.out.print(-);
System.out.println(Collections.max(set));
System.out.println(Collections.max(set,
String.CASE_INSENSITIVE_ORDER));
}
}
Result:
The above code sample will produce the following result.