Which package is imported by default in Java?

• A. java.util
• B. java.lang
• C. java.io
• D. java.awt

Answer: (B)

In Java, the java.lang package is automatically imported by the compiler for every Java program. This package provides the core classes that are essential for the Java programming language, including fundamental classes such as String, Integer, and System, among others. Since these classes are foundational to Java, having java.lang imported by default allows developers to use essential functionalities without needing to explicitly import this package in their code.

The significance of this default behavior is that it simplifies the development process, as developers can focus on their logic without worrying about importing these fundamental classes. Other packages, like java.util, java.io, and java.awt, must be imported explicitly when needed, as they provide additional and more specialized functionality beyond the core language features present in java.lang.