added my factorial program

C/abhishek.c

@@ -0,0 +1,12 @@
+#include<stdio.h>
+int main()
+{
+  int c, n;
+  unsigned long fact = 1;
+  printf("Enter a number to calculate its factorial\n");
+  scanf("%d", &n); 
+  for (c = n; c >= 1; c--)
+    fact *= c;
+  printf("Factorial of %d = %lu\n", n, fact);
+  return 0;
+}

Java/successive_mult.java

@@ -0,0 +1,15 @@
+class factorial
+{
+  void main()
+  {
+    Scanner sc=new Scanner(System.in);
+    int n=sc.nextInt();
+    int f=1;
+    for (int i=2;i<=n;i++)
+    { 
+        f=f*i;
+    }
+    System.out.println(f);
+  }
+}
+