Narayana Tutorial

Online Java Tutorial Blog

Difference between Class.forName() and newInstance() in java

Difference between Class.forName() and newInstance() in java   Class.forName() returns the Class-Type for the given name. Means that it will return reference to a class and load the available all static blocks not instance methods. if you are interested only in the static block of the class , the loading the class only would do , […]

What is the difference between Static Block and Constructor placed in a class?

  What is the difference between Static Block and Constructor placed in a class?   Static Block Static block of a java class executes for only one time when JVM loads the class irrespective of whether object is created for class or not and whether java class is having main method or not. So static block […]

Most Important HashMap Interview Questions and Answers

In this post I am sharing most important HashMap interview questions along with answers. Java collections package is java.util, this is the most important package and used frequently in most of the projects. What are the methods required for an object to be used as a key or value in HashMap equals() hashcode() The key […]

Narayana Tutorial © 2016 Frontier Theme
Show Button
Hide Button