finding index of a number in an array

finding_index_of_a_number_in_an_array.java

@@ -0,0 +1,26 @@
+import java.util.*;
+public class Program
+{
+    public static void main(String[] args) 
+    {
+        Scanner scn=new Scanner(System.in);
+        int n=scn.nextInt();
+        int []arr=new int[n];
+        for(int i=0;i<arr.length;i++)
+        {
+            arr[i]=scn.nextInt();
+        }
+        int data=scn.nextInt();
+        int index=-1;
+        //index print hoga agar no data is there then value of result is printed as -1..
+        for(int i=0;i<arr.length;i++)
+        {
+            if(data==arr[i])
+            {
+              index=i;
+              break;
+            }
+        }
+        System.out.println(index);
+	}
+}