What's wrong in my code?

Question

I am trying to reverse an array in java
is there any better way to do this?

my approach:
https://code.sololearn.com/ccPCYHVfpn68/?ref=app

Answer 1

Arrays class => List asList(Object[] arr)
You need to pass Integer array not int array
------------------------------------------------------
import java.util.Arrays;
import java.util.Collections;

public class Test
{
public static void main(String[] args) {
Integer arr[] = {1, 2, 3};
Collections.reverse(Arrays.asList(arr));
for(int i=0; i<arr.length; i++){
System.out.print(arr[i] + " ");
}
}
}

Answer 2

Thineshan Panchalingam thanks very much

Answer 3

Raul Ramirez I know, but I want to reverse the array

Answer 4

You could try implementing a function yourself for example:
i = 0
j = arr.length-1;
while ( i < j )
swap arr[i] with arr[j]
i++
j - -

Answer 5

Cat Pro
thank you for trying to think

Answer 6

Just print back to front