Java Basic

ArrayList class :  Resizable Array or growable array.  The underlined datastructure resizable and growable array.  Duplicates are allowed.  Insertion order is preserved.  Heterogeneous objects are… Read More »Java ArrayList class

ArrayList and Vector both implements List interface and maintains insertion order. ArrayList Vector 1. Every method present in ArrayList is non-synchronized. 1. Every method present… Read More »Difference between ArrayList and Vector in JAVA

Why need of Collection in java? In simple words, the Java Collections Framework allows you to use the right data structure because one size does… Read More »What is the need of Collection Framework in JAVA?

What is Object Oriented Programming? It is the style of programming in which large application software is implemented in terms of independently programmable units of… Read More »Object Oriented Programming | OOP

What are Collections in java? A collection is simply an object that groups multiple elements into a single unit. Collections are used to store, retrieve,… Read More »Collections in java

What is the Difference between Array and Collections (any collection class)? You have a question in your mind or somewhere in an interview, this question… Read More »Top 6 Difference Between Array and Collections in Java