How to substitute another value by index into an array?

Question

Java

I can't solve the problem, please help me write the code

Answer 1

int[] source = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10};
        int[] dest = new int[source.length];
        System.arraycopy(source, 1, dest, 0, source.length - 1);
        System.out.println(Arrays.toString(dest));

Answer 2

Put an SVG on each button with zero transparency, and set it to 100% transparency on hover?
(not a coder, but a sympathizer)