Example to show Enumeration exception in java
Enumeration is mean of retaining all the series of
element at a time. An object implement interface generates a series of all
element at single time. This is read only. We cannot change the value of an
object or value in the collection.
Understand with Example
Array List<String> list = new Array List<String>():-
Create an Array list of type
list.add("girish"):-This is the
method of adding an element to the list.
it.has next ( ) - This method return you the next
value if the value is set in list.
The System show you an exception if there is no element
specified in index[5].
To remove the exception from the program defined below you have to give
the proper index in the method list.remove(5).
EnumerationException.java
import java.util.*;
public class EnumerationException {
public static void main(String[] args) {
try {
ArrayList<String> list = new ArrayList<String>();
list.add("girish");
list.add("roseindia");
list.remove(5);
Iterator<String> it = list.iterator();
while (it.hasNext()) {
String s = it.toString();
System.out.println(s);
}
} catch (Exception ex) {
System.out.println("cannot remove this index elemnt");
}
}
}
|
|
Output of the program
| cannot remove this index elemnt |
Note:-To remove this exception you have to give
the proper index in the method list.remove(5).
Download source
code
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