CSC400: Swift Arrays

What is the syntax to declare an array in Swift?

• let myArray = [Int]()

• array myArray: [Int]

• var myArray = []Int

• var myArray: [Int]

How can you add a new element to the end of an array in Swift?

• array.push(newElement)

• array.append(newElement)

• array.extend(newElement)

• array.insert(newElement)

What method is used to remove an element from an array in Swift?

• delete(at:)

• remove(at:)

• extract(at:)

• eliminate(at:)

Provide an example of inserting an element at a specific index in an array in Swift.

• numbers.add(10, at: 2)

• numbers.insert(2, at: 10)

• numbers.insert(10, at: 2)

• numbers.insert(at: 2, 10)

Explain the difference between append and insert methods in Swift arrays.

• The insert method adds an element at the beginning of the array.

• The append method adds an element at the end of the array, while the insert method adds an element at a specific index in the array.

• The append method adds an element at the beginning of the array.

• The append method adds an element at a specific index in the array.

How do you access the first element of an array in Swift?

• arrayName.firstElement()

• arrayName(1)

• arrayName[0]

• arrayName.getElement(0)

What happens if you try to access an index in an array that is out of index number?

• Array Overflow error

• Invalid Index error

• Memory Access Violation

• Out of Bounds error

Discuss the importance of arrays in programming and give an example where arrays are useful.

• Arrays are not efficient for data management

• Arrays are important in programming for storing and managing multiple values efficiently. An example use case is storing a list of student grades.

• Arrays are only used for single value storage

• Arrays are limited to storing only numbers