TreeSet headSet(E toElement) method in java
import java.util.Iterator;
import java.util.TreeSet;
public class TreeSetHeadSetEToElementMethodExample
{
public static void main(String[] args)
{
TreeSet<Integer> ts = new TreeSet<Integer>();
TreeSet<Integer> hs = new TreeSet<Integer>();
ts.add(1);
ts.add(2);
ts.add(3);
ts.add(4);
ts.add(5);
ts.add(6);
// get values less than 5
hs = (TreeSet)ts.headSet(5);
// create iterator
Iterator<Integer> iterate = hs.iterator();
System.out.println("TreeSet data: ");
while(iterate.hasNext())
{
System.out.println(iterate.next() + " ");
}
}
}
4.2
5
import java.util.Iterator;
import java.util.TreeSet;
public class TreeSetHeadSetMethodExample
{
public static void main(String[] args)
{
TreeSet<Integer> ts = new TreeSet<Integer>();
TreeSet<Integer> hs = new TreeSet<Integer>();
ts.add(1);
ts.add(2);
ts.add(3);
ts.add(4);
ts.add(5);
ts.add(6);
// get values for 5 inclusive true
hs = (TreeSet)ts.headSet(5, true);
// create iterator
Iterator<Integer> iterate = hs.iterator();
System.out.println("TreeSet data for '5' inclusive TRUE: ");
while(iterate.hasNext())
{
System.out.println(iterate.next() + " ");
}
// get values for 5 inclusive false
hs = (TreeSet)ts.headSet(5, false);
iterate = hs.iterator();
System.out.println("TreeSet data for '5' inclusive FALSE: ");
while(iterate.hasNext())
{
System.out.println(iterate.next() + " ");
}
}
}
Thank you!
5
0
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