> For the complete documentation index, see [llms.txt](https://liuyang89116.gitbook.io/my-leetcode-book/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://liuyang89116.gitbook.io/my-leetcode-book/core_java_interview_questions/sec_8_miscellaneous_questions.md).

# Sec 8: Miscellaneous Questions

## 148) What are wrapper classes?

Wrapper classes are classes that allow primitive types to be accessed as objects.

## 149) What is a native method?

A native method is a method that is implemented in a language other than Java.

## 150) What is the purpose of the System class?

The purpose of the System class is to provide access to system resources.

## 151) What comes to mind when someone mentions a shallow copy in Java?

Object cloning.

## 152) What is singleton class?

Singleton class means that any given time only one instance of the class is present, in one JVM.

## 161) What is Locale?

A Locale object represents a specific geographical, political, or cultural region.

## 162) How will you load a specific locale?

By ResourceBundle.getBundle(?) method.

## 163) What is a JavaBean?

JavaBeans are reusable software components written in the Java programming language, designed to be manipulated visually by a software development environment, like JBuilder or VisualAge for Java.

## 164) Can RMI and Corba based applications interact?

Yes they can. RMI is available with IIOP as the transport protocol instead of JRMP.