Factorial of a number

Programming/C++/Insertionsort.cpp

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+#include <iostream>
+using namespace std;
+//Insertion sort
+int main(){
+
+    int n,comp=0,swap=0;
+    cout<<"Enter the no. of elements: ";
+    cin>>n;
+
+
+int arr[n];
+  cout<<"Enter the unsorted array: ";
+ for(int i=0;i<n;i++){
+     cin>>arr[i];
+ }
+
+for(int i=1;i<n;i++){
+    int current=arr[i];
+    int j=i-1;
+    while(arr[j]>current && j>=0){
+        arr[j+1]=arr[j];
+        j--;
+        comp++;
+    }
+  arr[j+1]=current;
+  swap++;
+}
+
+ cout<<"Yor sorted array: [";
+ for(int i=0;i<n;i++){
+     cout<<arr[i]<<" ";
+ }
+  cout<<"]";
+
+
+
+}

Programming/Java/Factorial.java

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+import java.util.*;
+public class Factorial {
+   public static void main(String[] args){
+     int num;
+      System.out.println("Enter the number to get factorial: ");
+      Scanner reader= new Scanner(System.in);
+      num=reader.nextInt();
+        int factorial=1;
+        if(num>0) {
+            for(int i=1;i<=num;i++){
+                factorial*=i;
+            }
+        System.out.println("Factorial of "+num+" is "+factorial);
+        }
+       else if(num<0){
+        System.out.println("Not Defined ");
+       }
+      else{
+        System.out.println(" factorial is 0 ");
+      }
+     }
+}