(JAVA )Write a declaration that populates an array with the following numbers 21, 43, 10 then prints them out in the following format: [a₀, a₁, a₂, ..., a_n] and finally prints the alternating sum on a new line - that is, if the array index is even add the value to the total, or if the array index is odd subtract the value from the total

For example:

Result

[21, 43, 10] -12

the output should completely same with the Result