Java Array basics Quiz

How do you declare an array of integers in Java?

• arrayName = new int[];

• int arrayName[];

• int[] arrayName;

• int arrayName = new int[];

In Java, how do you access the third element in an array?

• arrayName[3]

• arrayName[2]

• arrayName.get(2)

• arrayName(2)

What is the index of the first element in an array in Java?

• -1

• null

• 1

• 0

How do you access the last element in an array in Java?

• arrayName[arrayName.length - 1]

• arrayName[arrayName.length]

• arrayName[arrayName.length + 1]

• arrayName[-1]

How do you find the length of an array in Java?

• array.count()

• array.length

• array.length()

• array.size()

What is the purpose of using a for loop to iterate through an array in Java?

• To skip over the elements of the array

• To reverse the order of the elements in the array

• To access each element of the array and perform operations on them.

• To delete the elements of the array

How do you iterate through an array using an enhanced for loop in Java?

• for (dataType element : arrayName)

• for (int i = arrayName.length - 1; i >= 0; i--)

• for (int i = 1; i <= arrayName.length; i++)

• for (int i = 0; i < arrayName.length; i++)