To find a maximum object in an array of strings (e.g., String[] names = {"red", "green", "blue"}), use
A) Arrays.max(names)
B) Collections.max(Arrays.asList(names))
C) Arrays.sort(names)
D) Collections.max(names)
E) None of the above

Question

To find a maximum object in an array of strings (e.g., String[] names = {"red", "green", "blue"}), use 
A) Arrays.max(names)
B) Collections.max(Arrays.asList(names))
C) Arrays.sort(names)
D) Collections.max(names)
E) None of the above

Quizplus · Accepted Answer

Arrays.max() only works with arrays of primitive types or with objects that implement the Comparable interface. String implements Comparable, but Arrays.max() still won't work directly with an array of strings. Collections.max() works with any collection that contains objects that implement Comparable, and Arrays.asList() can be used to turn an array into a List. So, the best choice is B, which uses Collections.max() with Arrays.asList() to find the maximum string in the array.

To Find a Maximum Object in an Array of Strings