Search Interview Questions
| 3152 questions in repository.|
There are more than 200 unanswered questions.
Click here and help us by providing the answer.
Have a video suggestion.
Click Correct / Improve and please let us know.
|Core java - Interview Questions and Answers for 'Aci worldwide' - 1 question(s) found - Order By Newest|
|Ans. Vectors are synchronized whereas Array lists are not.|
|Help us improve. Please let us know the company, where you were asked this question :|
|Like Discuss Correct / Improve java basic interview question vector arraylist collections synchronization Oracle Lab49 Infosys Wipro Zoho HCL Technologies Tata Consultancy (CTS) BirlaSoft Emory Xplana British Telecom (BT) Apex Systems Capgemini Accenture Accenture India 3dplm Software Solution AppKnox eIntern Landmark Information Group ESystems Orbitz Worldwide HARMAN Starmount iConsultus KARYA Technologies Smart Chip Cuelogic Technologies Kronos Trigent Software Deloitte ACI Worldwide Unisys Tavant Technologies Referance data basic   frequent|
|If you are given a choice to use either ArrayList and LinkedList, Which one would you use and Why ?|
|What is the difference between ArrayList and LinkedList ?|
|Difference between TreeMap and HashMap ?|
|Difference between HashMap and Hashtable?|
|Can you provide some implementation of a Dictionary having large number of words ?|
| Collections.sort can only be performed on ..|
d. Any Collection implementation
| What is the difference between List, Set and Map ?|
What are the different Java Collections Interfaces ?
|What are strong, soft, weak and phantom references in Java ?|
|What are the Disadvantages of using Collection Classes over Arrays ?|