Calling and Importing Classes Defined in Unnamed PackagesHashSet, Vector, HashMap and Collection ClassesCharacter Set Encoding Classes and MethodsCharacter Set Encoding MapsEncoding Conversion Programs for Encoded Text FilesJava LoggingSocket Network Communication...
There are a couple in the Map interface as well. You should check a good Java book like Java 8 in Action to find out more about such important methods. That's all about what is default methods in Java 8, Why default or defender methods were added in Java programming language, and how...
1. What is @Bean Annotation in Spring Framework? @Bean Beans inversion of control 3. Traditional Approach In below, there is an explanation of the traditional approach to building the beans in Spring. Here we get theStudentandGradeclasses as an example. ...
Most of the Collection classes from Java 1.4 e.g.Vector,ArrayList,HashMap, HashSet has fail-fast iterators. The other type of iterator was introduced in Java 1.5 when concurrent collection classes e.g.ConcurrentHashMap,CopyOnWriteArrayList,andCopyOnWriteArraySetwas introduced. This iterator uses a vie...
So, as in our previous post, we discussed Deque and how we can utilize them in Java. But, let's have a small summary/recap so that we start with a fresh state. Deque advantages and functionality: Deque is adouble-ended queuein whichwe can add/delete elements from both ends. ...
A relation is supposed to be in 1NF (first normal structure), in the event that it contains no multi-valued characteristic. All in all you can say that a connection is in 1NF on the off chance that each characteristic contains just atomic(single) value as it were. ...
mutual exclusion for critical section of code but they are completely different to each other. If you want a block of code can be only executed by one thread at a given time you usually lock that portion of code using a mutext which is achieved by using synchronized keyowrord in Java....
How Dispatcher Servlet works Internally in Spring? As I said, DispatcherServlet wears many hats in Spring. It acts as a front controller and provides a single entry point for the application. It then uses handler mappings and handler adapters to map a request to theSpring MVC controllers. It...
What is the factory method design pattern in Java Difference between HashMap and ConcurrentHashMap in Java Difference between TreeSet and HashSet in Java Thanks for reading this article so far. If you like an object-oriented programming tutorial then please share it with your friends and colleagu...
Most of the collection classes from java.util package like ArrayList, HashMap, HashSet, Vector all support Fail fast iterator in Java but classes fromjava.util.concurrentpackage likeConcurrentHashMap,CopyOnWriteArrayListsupports fail-safe iterator in Java. ...