1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 |
/* Get Size of Java TreeSet Example This Java Example shows how to get the size or nubmer of elements stored in Java TreeSet object using size method. */ import java.util.TreeSet; public class GetSizeOfJavaTreeSetExample{ public static void main(String[] args) { //create TreeSet object TreeSet tSet = new TreeSet(); /* To get the size of TreeSet use int size() method of TreeSet class. It returns the number of elements stored in TreeSet object. */ System.out.println("Size of TreeSet : " + tSet.size()); //add elements to TreeSet object tSet.add(new Integer("1")); tSet.add(new Integer("2")); tSet.add(new Integer("3")); System.out.println("Size of TreeSet after addition : " + tSet.size()); //remove one element from TreeSet using remove method tSet.remove(new Integer("1")); System.out.println("Size of TreeSet after removal : " + tSet.size()); } } /* Output would be Size of TreeSet : 0 Size of TreeSet after addition : 3 Size of TreeSet after removal : 2 */ |
Add Comment