Analyze the following code. `double[] array = {1, 2, 3}; ArrayList<Double> list = new ArrayList<>(Arrays.asList(array)); System.out.println(list);` A) The code has a compile error... Analyze the following code. `double[] array = {1, 2, 3}; ArrayList<Double> list = new ArrayList<>(Arrays.asList(array)); System.out.println(list);` A) The code has a compile error because an integer such as 1 is automatically converted into an Integer object, but the array element type is Double. B) The code is correct and displays [1.0, 2.0, 3.0]. C) None of the mentioned D) The code is correct and displays [1, 2, 3]. E) The code has a compile error because asList(array) requires that the array elements are objects.
Understand the Problem
The question is asking for an analysis of a piece of Java code, specifically regarding potential compilation errors and the expected output when the code is executed. We need to evaluate whether the code is correct, if it compiles without errors, and what it prints to the console.
Answer
E) The code has a compile error because asList(array) requires that the array elements are objects.
The final answer is E) The code has a compile error because asList(array) requires that the array elements are objects.
Answer for screen readers
The final answer is E) The code has a compile error because asList(array) requires that the array elements are objects.
More Information
The Arrays.asList() method requires the input to be objects rather than primitives. Since the array is of type double[], it cannot be directly converted to a list of Double objects without boxing the primitives.
Tips
A common mistake is to assume that primitive type arrays can be directly used with Arrays.asList(). To fix this, one can box the primitives into their respective wrapper classes.
Sources
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