Adding java program for Number Diamond pattern

Author: hitesh181

number_diamond.java

@@ -0,0 +1,37 @@
+import java.util.Scanner;
+  
+public class diamond_pattern
+{            
+    public static void main(String[] args) {
+        Scanner sc=new Scanner(System.in);
+        System.out.println("Enter number of rows");
+        int n = sc.nextInt();
+        System.out.println("Enter number of colums");
+        int m = sc.nextInt();
+        
+        for (int i = 1; i <= n; i++)
+        {
+            //n = 4;
+   
+            for (int j = 1; j<= n - i; j++) { System.out.print(" "); } for (int k = i; k >= 1; k--)
+            {
+                System.out.print(k);
+            }
+            for (int l = 2; l <= i; l++) { System.out.print(l); } System.out.println(); } for (int i = 3; i >= 1; i--)
+        {
+             n = 3;
+   
+            for (int j = 0; j<= n - i; j++) { System.out.print(" "); } for (int k = i; k >= 1; k--)
+            {
+                System.out.print(k);
+            }
+            for (int l = 2; l <= i; l++)
+            {
+                System.out.print(l);
+            }
+   
+            System.out.println();
+        }
+       
+    }
+}