Ans: a) Using commons.lang java library
public static int arr[]={1,4,2,3,7,6};
public static void revAnArray(int arr[]){
ArrayUtils.reverse(arr);
for(int i=0;i<arr.length;i++){
System.out.println(arr[i]);
}
}
b) Reverse loop
public static void reverseByloop(int[] arr){
int length=arr.length-1;
for(int i=length;i>=0;i--){
System.out.println(arr[i]);
}
}
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