Java TreeMap.clear()
Syntax
TreeMap.clear() has the following syntax.
public void clear()
Example
In the following code shows how to use TreeMap.clear() method.
import java.util.NavigableMap;
import java.util.TreeMap;
/* w ww . ja va2s . com*/
public class Main {
public static void main(String[] args) {
NavigableMap<Integer, String> treemap = new TreeMap<Integer, String> ();
// populating tree map
treemap.put(2, "two");
treemap.put(1, "one");
treemap.put(3, "three");
treemap.put(6, "six");
treemap.put(5, "from java2s.com");
System.out.println("Entries in the Map: "+ treemap);
// clearing the map
System.out.println("Clearing the Map");
treemap.clear();
System.out.println("Entries in the Map: "+ treemap);
}
}
The code above generates the following result.
Home »
Java Tutorial »
java.util »
Java Tutorial »
java.util »