Spring Setter Injection, Dependency In The Form Of Collections

While creating spring bean (pojo class), the bean class can use any of the following 4 types of collections as dependency, along with some primitives and objects like previous sessions.. Set List Map Properties Spring supports these 4 collections…

Spring Dependency Injection With Map Collection Property

Map will stores the data in key, value base that to key, value must be the objects of any type.  One is called one pair or one entry. k1 Oracle k2 Sun k3 Java4s k4…

Difference between Java Set, List and Map Collections?

Let us see the main differences between Set,List,Map java collections.. Set (Interface) Set is an un-ordered collection which doesn’t allows duplicate (no-duplicate) elements We can iterate the values by calling iterator() method Set s = new HashSet(); Iterator iter…

How to Convert List to Map in Java 8

If you have a scenario where you need to convert List of objects to a Map, prior to java 8 you can do this by writing a simple for loop which is iterative. But in this article I will…