Compile error: String not Comparable

Sorting

AP Computer Science A· difficulty 2/5

ArrayList<String> list = new ArrayList<String>();
list.add("banana");
list.add("apple");
list.add("cherry");
// After Collections.sort(list):
System.out.print(list.get(0));

What is printed?

A
$Compile error: String not Comparable$
B
$banana$
C
$cherry$
D
$apple$
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Explanation

String implements Comparable <String> using lexicographic order. After sorting, "apple" comes first.

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