Spiral Matrix Problem.

Java/SpiralMatrix.java

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+package com.Abhi;
+import java.util.*;
+
+public class SpiralMatrix {                                  //Nice question.
+    public static void main(String[] args) {
+        Scanner in= new Scanner(System.in);
+
+
+        //Taking number of rows and columns as input.
+        System.out.print("Enter the number of rows: ");
+        int row=in.nextInt();
+        System.out.print("Enter the number of columns: ");
+        int col= in.nextInt();
+
+        //Creating an 2D array
+        int[][] spiral= new int[row][col];
+        System.out.println("Enter the elements.");
+        for (int ro = 0; ro < row; ro++) {
+            for (int co = 0; co < col; co++) {
+                spiral[ro][co]=in.nextInt();
+            }
+        }
+
+        //Output of the array.
+        System.out.println("The given array is: ");
+        for(int[] ele:spiral){
+            System.out.println(Arrays.toString(ele));
+        }
+
+        //Printing in form of spiral.
+        System.out.println();
+        System.out.println("The elements of your matrix in spiral form is: ");
+        //Initiating first and last row and column.
+        int a=0;
+        int b=row;
+        int c=0;
+        int d=col;
+
+        //Ending condition.
+        while(a<b && c<d){
+
+            //Printing the first row.
+            for (int i = c; i < d; i++) {
+                System.out.print(spiral[a][i]+" ");
+            }
+            a++;                                    //Increasing row number.
+
+            //Printing last column.
+            for (int i = a; i < b ; i++) {
+                System.out.print(spiral[i][d-1]+" ");
+            }
+            d--;                                    //Left shift of last column.
+
+            //Printing bottom row.
+            if (a<b){
+                for (int i = d-1; i >=c ; i--) {
+                    System.out.print(spiral[b - 1][i]+" ");
+                }
+                b--;                                //Bottom row up shift.
+            }
+
+            //Printing leftmost column.
+            if(c<d){
+                for (int i = b-1; i >= a; i--) {
+                    System.out.print(spiral[i][a-1]+" ");
+                }
+                c++;                                //Right shift of column.
+            }
+        }
+    }
+}
+