Iterator and Enumeration are Java cursors (Cursor is an Iterator, which is used to iterate or traverse or retrieve a Collection or Stream object's elements one by one.). They belong to Java collection framework.
5. Enumerator Other than Hashtable ,Vector is the only other class which uses bothEnumeration and Iterator.While ArrayList can only use Iterator for traversing an ArrayList . 6. Introduction in Java java.util.Vector class was there in java since the very first version of the java development k...
There are fewsimilarities betweenthese classes which are as follows: Both Vector and ArrayList use growable array data structure. The iterator and listIterator returned by these classes (Vector and ArrayList) are fail-fast. They both are ordered collection classes as they maintain the elements insert...
As per the Vectorjavadoc, the Enumeration returned by Vector is not fail-fast. On the other side the iterator and listIterator returned by ArrayList arefail-fast. Legacy?: The vector was not the part of collection framework, it has been included in collections later. It can be considered as...
Returns a new collection difference with associations between individual elements that have been removed and inserted only once. funcinverse() ->CollectionDifference<ChangeElement> Enumerations enumChange A single change to a collection. Default Implementations ...
What is the difference between Exception and Error? Both errors and exceptions are unwanted occurrence during the execution of a program. However, they have key differences. Exceptions can be foreseen by the programmer, while an error is difficult to foresee. Exceptions can be checked or unchecked...
4.Similarities Between Generic and Non-Generic Collection in C# 5.Side by Side Comparison – Generic vs Non-Generic Collection in C# in Tabular Form 6.Summary What is Generic Collection in C#? The Non-generic collections such asArrayList, Queue, Stack, etc. can store elements of different dat...
jdk版本的区别(The difference between the JDK versions).doc,jdk版本的区别(The difference between the JDK versions) The difference between jdk1.4 and JDK1.5 and JDK1.6 The new features of jdk1.5: 1. generic 2 automatic packing / unpacking 3 for-each 4
Vector uses Enumeration as well as Iterator to traverse an array whereas, an ArrayList only uses iterator for traversing an array. Since ArrayList is Unsynchronized and many threads can operate on it at the same time its performance is better than Vector on which only one thread can operate at...
and StringstrLiteral="Java"; Both expressions give you a String object, but there is a subtle difference between them. When you create a String object using thenew()operator, it always creates a new object inheap memory. On the other hand, if you create an object using String literal syn...