Java Collections emptyIterator() Method with Examples

The emptyIterator() method of Java Collections returns an iterator with no elements. This method is immutable. That is, we can not do any modifications after creating this method.

Syntax:

Iterator<data_type> object = Collections.emptyIterator();  

where,

• data_type is the type of iterator object
• object is the data to create an iterator

Parameters: It will accept no parameters.

Return Type: It will return an empty iterator.

Exceptions: It will not raise any exceptions.

Example 1:

Java

import java.util.*;

public class GFG {

    public static void main(String[] args)
    {
        // create an empty iteratoe
        Iterator<String> i = Collections.emptyIterator();

        // display the iterator
        System.out.println(i);
    }
}

Output

java.util.Collections$EmptyIterator@3d075dc0

Example 2:

Java

// Java program to display the next element
import java.util.*;

public class GFG {

    public static void main(String[] args)
    {
        // create an empty iteratoe
        Iterator<String> i = Collections.emptyIterator();

        // display the iterator next element
        System.out.println(i.hasNext());
    }
}

Output

false