Interested to Buy Any Domain ? << Click Here >> for more details...
What is difference between Iterator and for loop
- 9 Answers
- 55493 Views
- HP, I also Faced
- E-Mail Answers
Answer Posted / deepesh
An "Iterator object" is used to move through a Collection,
by calling Collection's iterator() method. By using for
loop, you are limited to that particular collection you are
traversing, while iterator gives freedom to work with any
collection.
iterator's job is to move through the sequence (without the
client programmer knowing or caring about the underlying
structure & its modification) using hasNext() and next().
remove() is provided "to remove the last element returned by
the iterator" and is called only per call after next().
Iterator can be used for Lists and Sets for forward
(unidirectional) traversal of elements without knowing their
size, which is nearly same concept for for-each loop.
| Is This Answer Correct ? | 6 Yes | 1 No |
Post New Answer View All Answers
Is vector thread safe in java?
How do singleton patterns work?
What is an eror in java?
what is the purpose of the wait(), notify(), and notifyall() methods? : Java thread
Why does java not allow multiple public classes in a java file ?
What does a void function return?
What is the function of http?
explain what is transient variable in java?
How do you print array in java?
What is a condition in java?
What is the main function in java?
What do you mean by garbage collection used in java?
What is a variable analysis?
What is the difference between an argument and a parameter?
Can we declare an array without size in java?
