Padhle

Inheritance :Has a relationship in OOPS Java 1) Has-a- relationship is also known as composition or aggregation 2) No specific keyword is there to implement has a relationship. 3) Its advantage is that it is helpful in code re-usability. Lets understand the Has a relationship with a Java code example : Here we have 4 […]

Inheritance is one of OOPS concept in Java where child class inherits the method of parent class. It emphasize on the res-usability of the code. some facts about Inheritance 1) Inheritance is implements by extends keyword in java. 2) Inheritance make the re-usability of code ie child class can access the methods of parent class […]

Map in java used to represent the represent the group of objects as key-value pair whereas collection concept is to represent the group of objects as a single entity. Example : Suppose we want to store the customer Id and Customer name together then we can use MAP. Below we have described this a java program. Features of MAP […]

Collections framework is one of the powerful feature of java. It basically introduced to store the different types of individual objects in a single entity. Framework provides the ready made methods to perform various operations like searching, sorting etc. It is present in the java.util package. The collections framework consist of the following components 1)Interfaces […]