Mastering Java Arrays

What is the correct syntax for declaring an array in Java?

• int[] myArray;

• myArray: int[];

• int myArray[];

• array myArray int[];

How do you initialize an array with specific values in Java?

• int numbers = {1, 2, 3, 4};

• int[] numbers = new int(1, 2, 3, 4);

• int numbers[] = new int[4]{1, 2, 3, 4};

• int numbers [] = {1, 2, 3, 4};

What is the method to access the first element of an array named 'myArray'?

• getFirst(myArray)

• myArray(1)

• myArray[0]

• myArray.first()

What is the length property of an array in Java used for?

• The length property indicates the type of elements in the array.

• The length property indicates the number of elements in the array.

• The length property defines the maximum size of the array.

• The length property is used to initialize the array elements.

How can you iterate through an array using a for loop?

• for (int i = 0; i < array.length; i += 2) { // access array[i] }

• for (int i = 0; i < array.length; i++) { // access array[i] }

• for (int i = 0; i < array.length; i++) { // access array[i + 1] }

• for (int i = 1; i <= array.length; i++) { // access array[i] }

What will happen if you try to access an index that is out of bounds in an array?

• The value at the last index will be returned.

• The array will automatically resize to accommodate the index.

• An error or exception will occur.

• The program will continue without any issues.

How do you create an array of integers with a size of 10?

• int array[10];

• int[] array = new int(10);

• array int = new int[10];

• int[] array = new int[10];

What is the output of accessing an uninitialized array element?

• empty string

• null

• undefined

• 0

What is the default value of an uninitialized integer array in Java?

• 0

• null

• -1

• undefined

How do you declare and initialize an array in a single line?

• int numbers[] = new int[3];

• int[] numbers = new int(3);

• int numbers = {1, 2, 3};

• int[] numbers = {1, 2, 3};