swapping values at last and first index of the array

swapping_values_in_array.java

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+//SWAPPING VALUES IN ARRAY STORED OF FIRST AND LAST INDEX OF ARRAY
+
+import java.util.*;
+public class Program
+{
+    public static void swap(int []arr,int i,int r)
+    {
+        //swapping numbers by introducing third variable
+        int s=arr[i];
+        arr[i]=arr[r];
+        arr[r]=s;
+    }
+    public static void main(String[] args) 
+    {
+        //defining array
+        int []arr;
+        arr=new int [5];
+        //array value given
+       arr[0]=33;
+       arr[1]=65;
+       arr[2]=87;
+       arr[3]=99;
+       arr[4]=45;
+
+       //swapping function applied to swap the first and last index value of array
+       swap(arr,0,4);
+
+       //after swapping the value at frist and last postion we print them
+       for(int i=0;i<arr.length;i++)
+       {
+           System.out.println(arr[i]);
+       }
+	}
+}