Java Arrays and Wrapper classes

Java array indexes start at 1.

• True

• False

What is the value of nums[3]?

Which is the correct way to declare an array of 10 integers? (select 2)

• 
• 
• 
• 

What is the correct way to assign 4 to the 3rd position of the nums1 array?

• nums1[2] = 3;

• nums1[3] = 3;

• nums1[3] = 4;

• nums1[2] = 4;

What is the syntax for declaring an array in Java?

• arrayName[type];

• arrayName type[];

• arrayName[] type;

• type[] arrayName;

How do you initialize an array in Java?

• int[] arr = int[size];

• int[] arr = new int[];

• int[] arr = new int[size];

• int arr = new int[size];

How do you change the value of the fifth element in an array named 'nums'?

• nums[5] = newValue

• nums[4] = newValue

• nums(4) = newValue

• nums.fifth = newValue

What method is used to find the length of an array in Java?

• length

• getLength

• size

• count

How do you search for a specific element in an array in Java?

• By using the search() method to find the index of the target element in the array.

• By using a for loop to iterate through the array and comparing each element with the target element.

• By using the contains() method to check if the array contains the target element.

• By using a while loop to iterate through the array and comparing each element with the largest element.

What is the default value of an element in an array of integers in Java?

• 0

• null

• 1

• undefined