Magic Number is a number whose sum of the digits when recursively added to the point that a single digit is obtained, comes out to be 1. For example, consider the number 1882. Sum of the digits in the first iteration for 1882: 1 + 8 + 8 + 2 = 19. Sum of the […]
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In the world of updated and aware world, the world has seen a transition from the computer curve to Mobile Phone or smartphone as it is frequently referred, but what has remain constant in this evolving world is Java. Java was designed keeping syntax similar to C/C++, to make it look familiar to application developers.
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So you think of learning Java. Good choice! This language is 20 years old but still progressive. The freshest (Java 11) release was in September 2018, and the next one will be in March 2019. Java is platform independent and you can do almost anything with it. Java is object oriented language but you can
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Here you will get java program to find lcm of two numbers. Finding LCM is one of the most basic mathematical calculations that are taught to students at their primary classes. Let’s review the basic concepts again. LCM stands for Least common multiple which simply means that it is a number that is divisible by
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Here you will learn about hashcode in Java. Hash code is an integer returned by hashCode() method. It has many advantages in different applications in java. Let us see how this method is giving hash code, how it is useful and what is the significance in java? What is HashCode in Java? Based on hash
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This tutorial covers all the concepts about java garbage collection, what is garbage collection, its application, its advantages, how GC (garbage collection) works with JVM?. How to scrutinize the garbage collection process and finally the methods to do so. Java Garbage Collection Garbage is the heap of unreferenced objects which occupy memory space without any
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Apache POI provides libraries for reading and writing excel file in Java. There are other libraries available in market but Apache POI is most popular and reliable among them. In this tutorial I will show you how you can read or write data to excel file in Java using Apache POI Library. There are few
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How many ways to create object in Java? The answer is there are many ways but in this tutorial I am sharing the 5 ways to do this. Using new Keyword Using object cloning Using Class.forName() Using Class Loader Using Object Deserialization Below I have discussed each of these methods one by one with example.
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