def combine(arr): result = [] for row in arr: for item in row: result.append(item) return " ".join(result)

Example:

public static String combine(String[][] arr) { StringBuilder sb = new StringBuilder(); for (int row = 0; row < arr.length; row++) { for (int col = 0; col < arr[row].length; col++) { sb.append(arr[row][col]); if (!(row == arr.length - 1 && col == arr[row].length - 1)) { sb.append(" "); } } }

It sounds like you're referencing a specific coding challenge or exercise (likely from a course like or similar) titled: 8.1.5 Manipulating 2D Arrays — Put Together a Content Since I don’t have the exact problem statement in front of me, I’ll give you a general approach to solving a typical “put together a content” problem involving 2D arrays. Common goal of this exercise You are usually given a 2D array of strings (words, phrases, or characters) and you need to combine them into a single string — often row by row or in a specific order.

String[][] words = { {"I", "love", "coding"}, {"Java", "is", "fun"}, {"Let's", "put", "it", "together"} }; Expected output:

function combine(arr) { let result = []; for (let row of arr) { for (let item of row) { result.push(item); } } return result.join(" "); } If you can share the (or a screenshot of the instructions), I can give you a solution tailored to that assignment.

return sb.toString(); } Python example: