Javarevisited

Read-only List , Map and Set in Java A read-only List means a List where you can not perform modification operations like add , remove...

Though both Iterator and Enumeration allows you to traverse over elements of Collections in Java, there is some significant difference bet...

Hello guys, if you are looking for an answer of popular Java interview question, how HashMap works in Java? or How HashMap works internally ...

The difference between fail-safe and fail-fast Iterator is becoming favorite core java interview questions day by day, the reason it  tou...

What is the difference between List and Set in Java is a very popular Java collection interview question and an important fundamental ...

ArrayList and Vector are two of the most used classes on the java collection package and the difference between Vector and ArrayList is o...

HashMap vs Hashtable in Java Though both Hashtable and HashMap are data-structure based upon hashing and implementation of Map interface,...

LinkedList and ArrayList both implement List Interface but how they work internally is where the differences lie. The main  difference be...

TreeSet , LinkedHashSet, and HashSet all are implementation of the  Set interface and by virtue of that, they follow the contract of Se...

Synchronized vs Concurrent Collections Though both Synchronized and Concurrent Collection classes provide thread-safety, the differences b...

The Java collection framework offers implementation of different data structure like an array, list, set, map, queue, tree, etc and the...

Hello guys, if you are wondering what is difference between HashMap, TreeMap, and LinkedHashMap in Java and when to use them then you are at...

It's not easy to get key from the value in Hashtable or HashMap, as compared to getting value from key because HashMap or Hashtable d...

Hello guys, if you are wondering what is differnece between an HashMap and IdentiyHashMap in Java then you are at right place. IdentityHas...

One of my readers asked me about the difference between ArrayList vs ArrayList< in Java ? > , which was actually asked to him in a ...

Interview questions from the Collection package or framework are most common in any Core Java Interview yet a tricky one. Together Collec...

Prior to Java 8, HashMap and all other hash table based Map implementation classes in Java handle collision by chaining , i.e. they use lin...

HashMap vs HashSet is the most frequently asked question during any core java interview and  the interview is not said completed until the...

HashMap vs EnumMap in Java What is the difference between EnumMap and HashMap in Java is the latest Java collection interview question ...

ConcurrentHashMap vs Hashtable vs Synchronized Map Though all three collection classes are thread-safe and can be used in multi-threaded, ...