Java Collections emptyEnumeration() Method

The emptyEnumeration() method of Java Collections class is used to get an enumeration that has no elements.

Syntax

Following is the declaration of emptyEnumeration() method:

Parameter

This method does not accept any parameter.

Returns

The emptyEnumeration() method returns an empty enumeration.

Exceptions

Compatibility Version

Java 1.7 and above

Example 1

import java.util.*;
public class CollectionsEmptyEnumerationExample1 {
	public static void main(String[] args) {
		Enumeration<String> e = Collections.emptyEnumeration();
            boolean b = e.hasMoreElements();
            System.out.println("Output: "+b);        	 
	      }
}

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Output:

Output: false

Example 2

import java.util.*;
public class CollectionsEmptyEnumerationExample2 {
	public static void main(String[] args) {		
	   List<String> ls = new ArrayList<String>();
        ls.add("one");
        ls.add("two");
        ls.add("three");
        ls.add("four");
        Enumeration<String> enm = Collections.emptyEnumeration();
        while(enm.hasMoreElements()){
            System.out.println(enm.nextElement());
        }
        System.out.println("Enumeration list is empty.");
	  }	  
}

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Output:

Enumeration list is empty.

Example 3

import java.util.*;
public class CollectionsEmptyEnumerationExample3 {
	public static void main(String[] args) {		
		List<Integer> ls = new ArrayList<Integer>();
            ls.add(1);
            ls.add(2);
            ls.add(3);
            ls.add(4);
            Enumeration<String> enm = Collections.emptyEnumeration();
            while(enm.hasMoreElements()){
                System.out.println(enm.nextElement());
                }
            System.out.println("It is empty Enumeration list.");
	      }	  
}

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Output: