JAVA - Collections Tutorials

Found 13 Tutorials

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• How to create read only Collection in Java with Example

  Read only collection means any collection which once created can not be modified i.e. you can not add new elements, you can not remove elements and ev
  http://javarevisited.blogspot.com/2012/07/create-read-only-list-map-set-example-java.html
  
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• What is different on List and Set in Java Collection

  Main difference between Set and List is that Set does not allow any duplicates and only store unique objects while List allow duplicates. Another diff
  http://javarevisited.blogspot.com/2012/04/difference-between-list-and-set-in-java.html
  
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• finding duplicates in a Array , file

  The following tutorial covers How to find and remove duplicates in array , file , line of text
  http://www.techlabs4u.com/2012/04/java-to-find-print-duplicates-using-or.html
  
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• How to change ArrayList to HashSet in Java Example

  Quick way to convert ArrayList to Set in java with simple example , though its worth noting that all those method will eat duplicates silently and siz
  http://javarevisited.blogspot.com/2012/01/convert-arraylist-to-set-java-example.html
  
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• How to create anonymous string array in Java Example

  Anonymous array are good to implement variable argument methods and they are used for that purpose prior to jdk5 introduced varargs.
  http://javarevisited.blogspot.com/2012/01/anonymous-array-example-java-create.html
  
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• Java TreeMap Example in Java

  TreeMap in Java is the best solution for Java programs which are looking for sorted datastrucutre. TreeMap in Java sort keys based on either their nat
  http://javarevisited.blogspot.com/2011/12/treemap-java-tutorial-example-program.html
  
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• Interview questions asked in Java Collections

  Java collection interview questions are core part of any java interview. Collection interview consists question on various collection classes like has
  http://javarevisited.blogspot.com/2011/11/collection-interview-questions-answers.html
  
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• How to use Iterator in HashMap in Java Program

  Iterators in Java are core of Collection package. They provide most important traversing functionality around objects stored in Collections. No matter
  http://javarevisited.blogspot.com/2011/10/java-iterator-tutorial-example-list.html
  
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• What are differences in HashSet vs HashMap in Java

  have you used hashmap or hashset, if yes then you must be aware of where to use hashmap and where we can use hashset. if not then go and read this art
  http://javarevisited.blogspot.com/2011/09/difference-hashmap-vs-hashset-java.html
  
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• Difference in ConcurrentHashMap and synchronized Map

  JDK 1.5 introduces some good concurrent collections which is highly efficient for high volume
  http://javarevisited.blogspot.com/2011/04/difference-between-concurrenthashmap.html
  
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• How HashMap works in Java

  How HashMap works in Java or sometime how get method work in HashMap is common interview questions now days. Almost everybody who worked in Java knows
  http://javarevisited.blogspot.com/2011/02/how-hashmap-works-in-java.html#comment-form
  
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• Difference between HashMap and HashTable

  This question oftenly asked in interview to check whether candidate understand correct usage of collection classes and aware of alternative solutions
  http://javarevisited.blogspot.com/2010/10/difference-between-hashmap-and.html
  
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• What is the difference between Enumeration and Iterator

  This question is from early ages of interview , I have not seen this question on recent interviews but it was common during 2006-2007 , now days quest
  http://javarevisited.blogspot.com/2010/10/what-is-difference-between-enumeration.html
  
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