About Lesson
The java.lang package is one of the most fundamental packages in Java, providing classes that are essential for the basic functioning of the Java language. These classes are automatically imported into every Java program, so you don’t need to import them explicitly.
Key Classes in java.lang package
- Object
- Class
- String
- StringBuffer
- StringBuilder
- System
- Math
- Thread
- Throwable
- Exception
- Error
- Runtime