add a util to print deque

Author: fishercoder1534

src/main/java/com/fishercoder/common/utils/CommonUtils.java

@@ -4,6 +4,7 @@
 import com.fishercoder.common.classes.ListNode;
 
 import java.util.ArrayList;
+import java.util.Deque;
 import java.util.List;
 import java.util.Random;
 
@@ -172,6 +173,20 @@ public static <T> void printList(List<T> list) {
         System.out.println();
     }
 
+    public static <T> void printDeque(Deque<T> deque) {
+        int count = 0;
+        for (T t : deque) {
+            count++;
+            System.out.print(t);
+            if (count % 10 != 0) {
+                System.out.print("\t");
+            } else {
+                System.out.println();
+            }
+        }
+        System.out.println();
+    }
+
     public static void printMatrix(int[][] matrix) {
         System.out.println("Matrix is: ");
         for (int i = 0; i < matrix.length; i++) {