7-Arrays

What is an array in Java?

• A single variable
• A collection of variables
• A conditional statement
• Only primitive data types

What are the types of arrays in Java?

• Single-dimensional and multidimensional
• String and integer
• Boolean and char
• Variable length

How are arrays used in Java?

• To store a collection of data
• To perform mathematical calculations
• To manipulate text
• Resizable, Performance, Fixed-Length, Memory, Deletion

How do you create an array in Java?

• By defining a constructor
• By declaring an object of the ArrayList class
• By using the square bracket notation after the variable type
• Variable length

What is an array class in Java?

• A class that provides static methods to create and access arrays
• A class that stores multiple values in a single variable
• A class that performs conditional statements
• Value

What are the advantages of using an array in Java?

• Good performance for fixed-length data
• Variable length
• Can perform text manipulation
• Value

What is a one-dimensional array?

• An array with only one element
• An array that stores elements in a linear fashion and can be accessed by index
• An array that stores elements in multiple dimensions
• Value

What are the uses of arrays?

• To store data elements of the same data type
• To perform text manipulation
• To create conditional statements
• Value

What are the advantages and disadvantages of arrays in Java?

• Typed, Performance, Fixed-Length, Memory, Deletion
• Resizable, Performance, Fixed-Length, Memory, Deletion
• Strongly Typed, Performance, Fixed-Length, Memory, Deletion
• Only primitive data types

What is the difference between an array and ArrayList?

• An array is a fixed-length data structure, while ArrayList is a variable-length data structure.
• An array is a variable-length data structure, while ArrayList is a fixed-length data structure.
• An array and ArrayList are the same thing.