Patterns: Example of Bridge pattern

Author: shaikrasheed99

src/patterns/PatternTwentyOne.java

@@ -0,0 +1,50 @@
+package patterns;
+
+/**
+ * Print below pattern
+ *      #        #
+ *      ##      ##
+ *      ###    ###
+ *      ####  ####
+ *      ##########
+ *      ####  ####
+ *      ###    ###
+ *      ##      ##
+ *      #        #
+ */
+
+public class PatternTwentyOne {
+    public static void main(String[] args) {
+        int n = 9;
+        printPattern(n);
+    }
+
+    private static void printPattern(int n) {
+        int firstHalf = n / 2 + 1;
+        for (int i = 1; i <= firstHalf; i++) {
+            for (int j = 1; j <= i; j++) {
+                System.out.print("#");
+            }
+            for (int j = 1; j <= 2 * firstHalf - 2 * i; j++) {
+                System.out.print(" ");
+            }
+            for (int j = 1; j <= i; j++) {
+                System.out.print("#");
+            }
+            System.out.println();
+        }
+        int secondHalf = n / 2;
+        for (int i = secondHalf; i >= 1; i--) {
+            for (int j = 1; j <= i; j++) {
+                System.out.print("#");
+            }
+            for (int j = 1; j <= 2 * secondHalf - 2 * i + 2; j++) {
+                System.out.print(" ");
+            }
+            for (int j = 1; j <= i; j++) {
+                System.out.print("#");
+            }
+            System.out.println();
+        }
+    }
+}