Java String Array Concatenation: Fix Common Errors and Optimize Your Code

There are a few errors in your code. Here's the corrected version:\n\njava\npublic class Solution {\n public String join(String[] s) {\n String t = \"\";\n for (String str : s) {\n t += str;\n }\n return t;\n }\n}\n\n\nHere are the changes I made:\n\n1. Added a missing semicolon after String t=\"\";. \n2. Replaced s.each with a for-each loop to iterate over the elements in the array s. \n3. Changed it to str in the loop to represent each element in the array. \n4. Added a closing curly brace } at the end of the method.\n\nWith these changes, your join method should work correctly to concatenate all the strings in the array s and return the result.