Forum: Collections

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

18 Days ago
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Ashish1997

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Joined: Apr 1, 2018

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collection

How does Work Internally Hashmap explain with the example More

Last edited by Ashish1997: 14 Days ago
Replies: 2 | Views: 149
Go through the below link and put comments if any doubts.
14 Days ago
28-4-2015 04:00:00 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: 13-11-2018 09:24:27 AM
Replies: 20 | Views: 1862
Bean Inheritance: Getting the Parent bean all properties and behaviours to child bea...
13-11-2018 09:24:27 AM
04-11-2018 02:50:22 PM
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VARYAN

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Joined: Oct 12, 2018

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working with Hashmap

how Hashmap internally works? More

Last edited by VARYAN: 05-11-2018 12:45:16 PM
Replies: 1 | Views: 163
HashMap stores the data in the form of key-value pairs. Each key-value pa...
05-11-2018 12:45:16 PM
28-9-2018 07:17:58 PM
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satya1995

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Joined: Feb 21, 2018

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Answer Icon hashMap vs hashTable

What are the major difference between HashMap and HashTable? More

Last edited by satya1995: 26-10-2018 04:27:27 PM
Replies: 1 | Views: 235
Hashtable does not allow null keys<...
26-10-2018 11:13:30 AM
08-9-2017 03:17:14 PM
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Ashok1207

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Joined: Apr 20, 2017

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Sorting of list

 How we can sort list by multiple attributes?. Ex:list of ... More

Last edited by Ashok1207: 29-9-2018 06:39:19 PM
Replies: 1 | Views: 728
Hope this example will help you ?
29-9-2018 06:39:19 PM
30-4-2018 01:00:02 AM
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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.: 26-6-2018 09:36:34 PM
Replies: 1 | Views: 624
Let me explain... While working with Java everyone knows interface concept that if a cl...
26-6-2018 09:36:34 PM
06-4-2018 05:37:19 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: 24-6-2018 08:50:28 PM
Replies: 2 | Views: 564
Collection is defined as a group of object, and we use serializable interface to mark an o...
24-6-2018 11:03:16 AM