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Transform values with a stream

The goal is to transform an array of numbers into a comma-delimited string using functional programming. The code snippet you provided has a minor issue: String.join(",", strings[0]) is incorrect because it tries to join a single element ( strings[0] ) rather than all elements in the strings array. Here's the corrected code for the transformValues method: import java.util.Arrays; class Answer {     // Change these boolean values to control whether you see      // the expected answer and/or hints.     static boolean showExpectedResult = true;     static boolean showHints = true;     // Transform an array of numbers into a comma-delimited list     // using functional programming.     static String transformValues(int[] numbers) {         // Convert the int array to a stream of integers         // Map each integer to its String representation         // ...
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Collections Framework

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Inspect a collection

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