Core Java Programming Course- Arrays in Java

The video tutorial introduces arrays as collections of similar data types, such as strings, integers, and characters. It explains how to declare arrays, add elements, and understand array indexing. The tutorial covers how to find the length of an array, modify elements, and handle index out of bounds exceptions. It also demonstrates iterating over arrays using loops and creating arrays of different data types, emphasizing the constraints of fixed size and similar data types.

What is an array primarily used for?

• Storing a collection of different data types

• Storing a collection of similar data types

• Storing a single data type

• Storing a collection of functions

How can you find the number of elements in an array?

• Using the index method

• Using the length method

• Using the count method

• Using the size method

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

• The program will return null

• The program will access the first element

• The program will crash without any error

• The program will throw an 'array index out of bounds' exception

Which of the following is true about array size?

• Array size can be changed using the resize method

• Array size is fixed once declared

• Array size is dynamic by default

• Array size can be changed after declaration

What is the starting index of an array?

• It can be set by the user

• Depends on the array type

• 0

• 1

Which loop is commonly used to iterate over an array?

• Switch loop

• Do-while loop

• While loop

• For loop

What must be consistent within an array?

• The size of elements

• The name of elements

• The data type of elements

• The index of elements