Printing spiral in 2D Matrix

Author: Anubhab2003

src/algorithms/2darray/printspiral.java

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+import java.util.*;
+public class printspiral{
+    public static void spiral(int matrix[][]){
+        int startrow=0;
+        int endrow=matrix.length-1;
+        int startcol=0;
+        int endcol=matrix[0].length-1;
+        while(startrow<=endrow && startcol<=endcol){
+            //printing Top boundary
+            for(int j=startcol;j<=endcol;j++){
+                System.out.println(matrix[startrow][j]+" ");
+            }
+            //System.out.println();
+            //print left extreme
+            for(int i=startrow+1;i<=endrow;i++){
+                System.out.println(matrix[i][endcol]+" ");
+
+            }
+            //System.out.println();
+            //Print bottom boundary
+            for(int j=endcol-1;j<=startcol;j--){
+                if(startrow==endrow){
+                    break;
+                }
+                System.out.println(matrix[endrow][j]+" ");
+            }
+            //System.out.println();
+            //Print left extreme
+            for(int i=endrow-1;i<=startrow+1;i--){
+                if(startcol==endcol){
+                    break;
+                }
+                System.out.println(matrix[i][startcol]+" ");
+            }
+            //System.out.println();
+            startrow++;
+            endrow--;
+            startcol++;
+            endcol--;
+
+
+        }
+    //System.out.println();
+
+    }
+    public static void main(String args[]){
+        int matrix[][]={{1,2,3,4},{5,6,7,8},{9,10,11,12},{13,14,15,16}};
+        spiral(matrix);
+    }
+}