#
Number Archive

In this post, we will see how to implement isNumeric method in java. There are many way to check if String is numeric or not. Let’s see one by one. Using regular expressions You can …

Fibonacci series is numerical series in which next number is sum of previous two numbers. For example : 0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55 etc. There are two ways to …

Armstrong number is a 3 digit number which is equal to sum of cube of its digits. For example: 371,153 In this post, we will see how to check for Armstrong number in java. …

In this post, we will see how to swap two numbers without using temporary variables. There are three ways to do it. Java program: When you run above program, you will get following output: …

In this post, we will see how to find Greatest common divisor(GCD) and Least Common Multiple(LCM) in java. GCD is calculated using Euclidean algorithm and LCM is calculated using reduction by GCD Eucid algo for …