Java Collections emptyEnumeration()​ Method with Examples

The emptyEnumeration() method of Java Collections is used to get the empty enumeration that contains no elements in Java.

Syntax:

public static <T> Enumeration<T> emptyEnumeration()   

Parameters: This method has no parameters.

Return Type: This method will return an empty enumeration.

Exceptions: This method will not arise any exceptions.

Example 1: Java program to check whether the enumeration has more elements or not. So we are using the hasMoreElements() method. This will return a boolean value. If the enumeration contains elements, it will return true, otherwise false.

Syntax:

object.hasMoreElements()

where object is an enumeration object

Java

// Java program to illustrate the
// Collections emptyEnumeration()​
// Method
import java.util.*;

public class GFG {
    // main method
    public static void main(String[] args)
    {
        // create an empty enumeration
        Enumeration<String> obj
            = Collections.emptyEnumeration();

        // check more elements or not
        System.out.println(obj.hasMoreElements());
    }
}

Output

false

Example 2: In this example, we are going to get the next element of the empty enumeration using nextElement().

Syntax:

object.nextElement()

where object is an enumeration object

Java

// Java program to illustrate the
// Collections emptyEnumeration()​
// Method
import java.util.*;

public class GFG {

    // main method
    public static void main(String[] args)
    {
        // create an array list
        List<String> data = new ArrayList<String>();

        // add elements to the list
        data.add("java");
        data.add("python");
        data.add("php");
        data.add("html/css");

        // create enumeration object
        Enumeration<String> enm
            = Collections.emptyEnumeration();

        // get the elements
        while (enm.hasMoreElements()) {
            System.out.println(enm.nextElement());
        }

        // display
        System.out.println("Empty");
    }
}

Output

Empty