Wrapper Classes: Integer and Double
Sophie Anderson
3 min read
Study Guide Overview
This guide covers wrapper classes and autoboxing in Java. It explains the purpose of wrapper classes (like Integer and Double) for primitive types (like int and double), including their use with collections and methods. The guide also discusses constructors and important methods associated with the Integer wrapper class.
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Question 1 of 5
Which of the following is a wrapper class? 🤔
int
double
Integer
String