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Day 0: Hello, World. Hackerrank Solution in java

 Day 0: Hello, World. Hackerrank Solution Do check My Video on Explanation of Following Code: Sample Input Welcome to 30 Days of Code! Sample Output Hello, World. Welcome to 30 Days of Code! Code: import  java.io.*; import  java.util.*; import  java.text.*; import  java.math.*; import  java.util.regex.*; public   class  Solution {      public   static   void  main(String[] args) {          // Create a Scanner object to read input from stdin.         Scanner scan =  new  Scanner(System.in);                    // Read a full line of input from stdin and save it to our variable, inputString.  ...