Complete Java SE 8 Developer Bootcamp - Sorting and Searching Arrays

The video tutorial introduces Java Arrays, focusing on their utility in sorting and searching tasks. It covers the Arrays.sort method, explaining how it can sort elements using natural ordering or a comparator. The tutorial also discusses the binary search method, emphasizing the need for a sorted array and explaining the return value when an element is not found. Finally, it demonstrates the Arrays.fill method to populate an array with a single value, highlighting its versatility across different data types.

What is the primary purpose of the Java Arrays class?

• To assist with sorting, searching, and filling arrays

• To manage file input and output

• To create graphical user interfaces

• To handle mathematical operations

Which method is used to sort an array in Java?

• Arrays.arrange()

• Arrays.sort()

• Arrays.order()

• Arrays.sequence()

What must be true about an array before using the binary search method?

• It must contain only integers

• It must be sorted

• It must be empty

• It must be filled with zeros

If a binary search does not find the element, what does it return?

• The index of the last element

• A positive number indicating the next available index

• A negative number indicating where the element should be

• Zero

What does the fill method do in the Java Arrays class?

• It removes duplicates from the array

• It fills the array with a specified value

• It searches for an element

• It sorts the array