Collection Iterate Example

In this section, you will get the detailed explanation about the
hasNext()
method of interface Iterator. We are going to use hasNext()
method of interface Iterator
in Java. The description of the code is given below for the usage of the method.
Description of the code:
Here, you will get to know about the hasNext()
method through the following java program. True is return by this method in case
the iteration has more elements. This means that if the iteration has more
elements then the hasNext() method
will return true rather than throwing an exception.
In the program code given below, we have taken a string
of elements. We have converted this string of elements into a list of array and
then we have applied the hasNext() method which returns true because
there are more elements in the list. Hence we get the following output.
Here is the code of program:
import java.util.*;
public class hasNext{
public static void main (String args[]) {
boolean b;
String elements[] = {"Blue", "Grey", "Teal"};
Set s = new HashSet(Arrays.asList(elements));
Iterator i = s.iterator();
if (b = i.hasNext()){
System.out.println(b);
}
}
}
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Output of the program:
| C:\unique>javac hasNext.java
C:\unique>java hasNext
true
C:\unique> |
Download this example.

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Current Comments
9 comments so far (post your own) View All Comments Latest 10 Comments:im very thakful 2 u for this site...it has done gud to me in learning java...
Posted by harmeet on Saturday, 08.11.07 @ 12:32pm | #23160
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NayabRasool
Posted by nayabrasool on Tuesday, 08.7.07 @ 17:36pm | #22871
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Posted by Gayan on Wednesday, 07.18.07 @ 11:10am | #21489
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Posted by Vikram on Monday, 07.16.07 @ 17:35pm | #21389
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Posted by Chaitanya on Tuesday, 02.20.07 @ 14:53pm | #8474
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Posted by Ramanathan on Friday, 01.26.07 @ 13:01pm | #4401
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ramesh.u
Posted by ramesh.u on Tuesday, 01.2.07 @ 18:55pm | #2435