Java Collections emptyEnumeration() Method with Examples

by Online Tutorials Library July 22, 2022

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 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 ls = new ArrayList();          ls.add(“one”);          ls.add(“two”);          ls.add(“three”);          ls.add(“four”);          Enumeration 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 ls = new ArrayList();              ls.add(1);              ls.add(2);              ls.add(3);              ls.add(4);              Enumeration enm = Collections.emptyEnumeration();              while(enm.hasMoreElements()){                  System.out.println(enm.nextElement());                  }              System.out.println(“It is empty Enumeration list.”);        }    }  

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Output:

It is empty Enumeration list.

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Java Collections emptyEnumeration() Method with Examples

Java Collections emptyEnumeration() Method

Syntax

Parameter

Returns

Exceptions

Compatibility Version

Example 1

Example 2

Example 3

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