/******************************************************************************************************* myRandomWalkers.java******************************************************************************************************/public class myRandomWalkers { public static void main(String[] args) { int N = Integer.parseInt(args[0]); int T = Integer.parseInt(args[1]); //number of trials to be simulated in program int x = 0; //starting position for x coordinate int y = 0; //starting position for y coordinate double r; int step; //for loop should repeat until 'N' 'steps' are walked int trial; //program should repeat until 'T' number of 'trials" are run long average = 0; double square; double root; for (trial = 0; trial<T; trial++) { for(step = 0; step<N; step++){ r = Math.random(); if (r<.25) {x++;} else if (r<.5) {y++;} else if (r<.75) {x--;} else {y--;} } square = ((x*x)+(y*y)); root = Math.sqrt(square); average += root; } System.out.println("mean squared distance: " + (average / T)); }}