#092 Wrapper Classes Part 2

What is a key advantage of wrapper classes in Java?

• They make programs run faster

• They contain useful built-in variables and methods

• They use less memory than primitive types

• They are easier to write than primitive types

Which constants are available in the Integer class?

•  Integer.SMALLEST and Integer.LARGEST

• Integer.min and Integer.max

•  Integer.MIN_VALUE and Integer.MAX_VALUE

• Integer.smallest_value and Integer.largest_value

What is the purpose of the Integer.parseInt() method?

• To convert an integer to a string

• To convert a string to an Integer object

• To convert a string to a primitive int value

• To compare two integers

What is autoboxing in Java?

• Autoboxing is a method to convert strings to integers.
• Autoboxing refers to the process of creating new primitive types.
• Autoboxing is the manual conversion of wrapper classes to primitive types.
• Autoboxing is the automatic conversion between primitive types and their corresponding wrapper classes in Java.

What is unboxing?

• Converting a wrapper class object to a primitive type

• Breaking down an object into smaller parts

• Removing unnecessary code

• Converting a primitive type to a wrapper class

What is a key benefit of auto-boxing and unboxing?

•  It makes programs run faster

•  It saves memory

• It allows primitive types and wrapper classes to be used interchangeably

• It prevents programming errors

What do wrapper classes provide access to?

• Only constants

• Only methods

• Both constants and method

• Neither constants nor methods