Interested to Buy Any Domain ? << Click Here >> for more details...
where exactly collections are usefull in realtime
- 2 Answers
- 10455 Views
- I also Faced
- E-Mail Answers
Answers were Sorted based on User's Feedback
Answer / kumar
Collections are usefull in those situations where you doesn't know how much data you have to handled, that means size of data not defined. Like there are so many scenario when data dynamically comes from UI or application ( no fixed size defined) then you must use collections to manage and perform diff operations.
| Is This Answer Correct ? | 13 Yes | 1 No |
Answer / suresh
collections are the advanced concept to maintain dynamic data as objects. In real time some times we can't estimate the size of the data and type of the data.so it's better to maintain data as objects through collections.through arrays we can't manage the data because arrays are not auto-grow-able in size.
through collections we can use our required data structures directly. we have different classes for that. in each we have predefined methods to manipulate data in that collection.
Collections are performance wise slow. even though collections provide more features to maintain huge data easily.
| Is This Answer Correct ? | 6 Yes | 0 No |
What is array sorting in java?
Can list have duplicates in java?
Which is faster string or stringbuilder?
when there is a need of jvm then how we can say that java is a platform independent language?
What is port number in java?
what are the different non-access specifiers in java?
what is run time polymorphism
What is a static method in java?
Mention a package that is used for linked list class in java.
How to call a Stored Procedure from JDBC?
What does %4d mean in java?
Which number is denoted by leading zero in java?
Core Java 
