This program loops through fileLoop.txt, computation, and display results   package charioloop; import java.util.Scanner; import java.io.*; // public class Charioloop {   public static void main(String[] args) throws IOException { //Create a reference to the physical file File loopfile = new File("fileLoop.txt");   // connect a Scanner to the file Scanner getAll = new Scanner( loopfile ); int num = 0, square = 0;   while(num != -1){ num = getAll.nextInt(); square = num * num ; System.out.println("The square of " + num

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Variables and Constant

Constants and variables are widely used in mathematical equations and expressions. They are also commonly found in the domain of programming, where each language has its own way to differentiate between a constant and a variable. Since they have all sorts of applications, knowing their differences is a good place to start.