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What is Java Collections Framework - JCF? JCF Added in Java version 1.2 Collections is nothing but a group of Objects. Present in java.util...
What is Annotation? It is kind of adding META DATA to the java code. Means, its usage is OPTIONAL. We can use this meta data information at runtime...
What is Reflection? This is used to examine the Classes, Methods, Fields, Interfaces at runtime and also possible to change the behavior of the class...
What is Interface? Interface is something which helps 2 system to interact with each other, without one system has to know the details of other. Or in...
Pojo Class Stands for "Plani Old Java Object". Contains variables and its getter and setter methods. Class should be public. Public default...
Problem Given an array/list of length ‘n’, where the array/list represents the boards and each element of the given array/list represents the length...
