import java.io.*;
import java.util.List;
import java.util.Arrays;// to use arrays
import java.util.*;// Arrays.sort
public class Test_This {
public static void main(String[] args) throws IOException{
// TODO Auto-generated method stub
Process p1 = new Process();
p1.method_1();
}
}
class Process
{
String first[] = {"Java","A+","C#","XML","JSP","PHP","Z", "C#"};
public Process()
{
System.out.println("Default) constructor");
}
public void method_1()
{
TreeSet tree = new TreeSet();
//for( int i = 0; i < 5; i++)
for(String s1 :first)
{
tree.add(s1);
}
System.out.println(tree);
System.out.println("first element " +tree.first());
System.out.println("last element " + tree.last());
System.out.println("head subset " +tree.headSet("JSP"));
System.out.println("tail subset " +tree.tailSet("JSP"));
Iterator it = tree.iterator();
do
{
System.out.println(it.next() );

}while(it.hasNext());
}
}