class Solution { public int[] twoSum(int[] nums, int target) { / .. } } Practice 2 Given an array of integers, return indices of the two Keys such that they add up to a specific target. You may assume...

Please answer the question in the screenshot. The language used here is in Java.

Extracted text: class Solution { public int[] twoSum(int[] nums, int target) { / .. } } Practice 2 Given an array of integers, return indices of the two Keys such that they add up to a specific target. You may assume that each input would have exactly one solution, and you may not use the same element twice. Example: Given nums = [2, 7, 11, 15], target = 9, %3D Because nums[0] + nums[1] = 2 + 7 = 9, return [0, 1]. Note: [0, 1] and [1, 0] are equivalent, and you only need to return one of them.