in java can someone please help run this code. How can I replace the following for a scanner to input the values

public static void main(String[] args) {

String[] a = StdIn.readAllStrings();

Shell.sort(a);

show(a);

public class Shell { // This class should not be instantiated. private Shell() { } /** * Rearranges the array in ascending order, using the natural order. * @param a the array to be sorted */ public static void sort(Comparable[] a) { int n = a.length; // 3x+1 increment sequence: 1, 4, 13, 40, 121, 364, 1093, ... int h = 1; while (h < n/3) h = 3*h + 1; while (h >= 1) { // h-sort the array for (int i = h; i < n; i++) { for (int j = i; j >= h && less(a[j], a[j-h]); j -= h) { exch(a, j, j-h); } } assert isHsorted(a, h); h /= 3; } assert isSorted(a); } /*************************************************************************** * Helper sorting functions. ***************************************************************************/ // is v < w ? private static boolean less(Comparable v, Comparable w) { return v.compareTo(w) < 0; } // exchange a[i] and a[j] private static void exch(Object[] a, int i, int j) { Object swap = a[i]; a[i] = a[j]; a[j] = swap; } /*************************************************************************** * Check if array is sorted - useful for debugging. ***************************************************************************/ private static boolean isSorted(Comparable[] a) { for (int i = 1; i < a.length; i++) if (less(a[i], a[i-1])) return false; return true; } // is the array h-sorted? private static boolean isHsorted(Comparable[] a, int h) { for (int i = h; i < a.length; i++) if (less(a[i], a[i-h])) return false; return true; } // print array to standard output private static void show(Comparable[] a) { for (int i = 0; i < a.length; i++) { StdOut.println(a[i]); } } /** * Reads in a sequence of strings from standard input; Shellsorts them; * and prints them to standard output in ascending order. * * @param args the command-line arguments */ public static void main(String[] args) { String[] a = StdIn.readAllStrings(); Shell.sort(a); show(a); } }