/*
Simple Java TreeSet example
This simple Java Example shows how to use Java TreeSet. It also describes how to
add something to TreeSet object using add method.
*/
import java.util.TreeSet;;
public class SimpleJavaTreeSetExample {
public static void main(String[] args) {
//create object of TreeSet
TreeSet tSet = new TreeSet();
/*
Add an Object to TreeSet using
boolean add(Object obj) method of Java TreeSet class.
This method adds an element to TreeSet if it is not already present in TreeSet.
It returns true if the element was added to TreeSet, false otherwise.
*/
tSet.add(new Integer("1"));
tSet.add(new Integer("2"));
tSet.add(new Integer("3"));
/*
Please note that add method accepts Objects. Java Primitive values CAN NOT
be added directly to TreeSet. It must be converted to corrosponding
wrapper class first.
*/
System.out.println("TreeSet contains.." + tSet);
}
}
/*
Output of the program would be
TreeSet contains..[1, 2, 3]
*/
