Forum: Collections

Java SE Collections like List, Set, Map and Properties related questions can be posted here

29-4-2018 09:00:02 PM
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Hrudanand J.

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Why Map interface doesn?t extend Collection interface?

Why Map interface doesn?t extend Collection inte... More

Last edited by Hrudanand J.: 25 Days ago
Replies: 1 | Views: 251
Let me explain... While working with Java everyone knows interface concept that if a cl...
25 Days ago
06-4-2018 01:37:19 PM
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venky2662

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Answer Icon Why collection does not extend cloneable and serializable interface ?

Why collection does not extend cloneable and serializable interface ?&... More

Last edited by venky2662: 27 Days ago
Replies: 2 | Views: 277
Collection is defined as a group of object, and we use serializable interface to mark an o...
27 Days ago
22-5-2018 06:52:52 PM
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Dinesh14

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Answer Icon about random access interface

why array-list and vector only implements from random access interface... More

Last edited by Dinesh14: 23-5-2018 12:21:27 PM
Replies: 3 | Views: 130
Hi Abhishek, There is no big deal of Confusion here. By saying my class implements ...
23-5-2018 11:37:07 AM
28-4-2015 12:00:00 AM
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arvind208

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what is difference b/w bean inheritance and collection merging?

what is difference b/w bean inheritance and collection merging? More

Last edited by arvind208: 28-4-2018 12:21:48 PM
Replies: 19 | Views: 1354
if u inherit one bean2 which contains Map from another bean1 which also contains Map, then...
28-4-2018 12:21:48 PM
09-4-2018 07:25:39 AM
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KarthikReddy

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How the set avoid duplicates internally?

What mechanism the set actually uses internally? Can anyone gi... More

Last edited by KarthikReddy: 11-4-2018 12:11:25 PM
Replies: 2 | Views: 277
Thank you for your response
11-4-2018 12:11:25 PM
22-3-2018 05:42:16 PM
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Linga12

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Data-structures

Hi, I have a doubt on what is upper bound and lower&nbs... More

Last edited by Linga12: 22-3-2018 05:45:00 PM
Replies: 0 | Views: 160


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19-3-2018 01:51:39 PM
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GKNageswar

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interview question

1) write a program on input of date :Date format yyyy-mm-dd (20... More

Last edited by GKNageswar: 22-3-2018 11:23:03 AM
Replies: 1 | Views: 448
package dateEx; import java.text.ParseException; i...
22-3-2018 11:23:03 AM