Java TreeSet.clear()
Syntax
TreeSet.clear() has the following syntax.
public void clear()
Example
In the following code shows how to use TreeSet.clear() method.
import java.util.Iterator;
import java.util.TreeSet;
// ww w . j a va 2 s . c o m
public class Main {
public static void main(String[] args) {
TreeSet<Integer> treeadd = new TreeSet<Integer> ();
treeadd.add(12);
treeadd.add(13);
treeadd.add(14);
treeadd.add(15);
Iterator<Integer> iterator = treeadd.iterator();
while (iterator.hasNext()){
System.out.println(iterator.next());
}
treeadd.clear();
System.out.println(treeadd.size());
}
}
The code above generates the following result.
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