public boolean contains(Object value)
public boolean containsValue(Object value)
import java.util.Hashtable;
public class MainClass {
public static void main(String[] s) {
Hashtable table = new Hashtable();
table.put("key1", "value1");
table.put("key2", "value2");
table.put("key3", "value3");
System.out.println(table.contains("value3"));
}
}
true