Is Java Lang a package?

Is Java Lang a package?

The package java. lang contains classes and interfaces that are essential to the Java language. Thread, the class that controls each thread in a multithreaded program. Throwable, the superclass of all error and exception classes in Java.

What is meant by default package in Java?

The default package is a collection of java classes whose source files do not contain and package declarations. These packages act as the default package for such classes. It provides the ease of creating small applications when the development of any project or application has just begun.

Why do we use Java lang?

lang. Provides the classes necessary to create an applet and the classes an applet uses to communicate with its applet context. Provides interfaces and classes for dealing with different types of events fired by AWT components. …

Why is Java Lang package basic Java package and is required to be automatically imported?

lang package provides fundamental classes to built java programs. While in every program Collection classes are not used while basic datatypes are essential for every java program. To avoid unnecessary load of other classes in program other packages are not auto imported while essential package java.

Can I change the default package in Java?

You cannot change your default package in java which is java.lang . All classes other than this package have to be imported using import statement. So for your 1,2 and 3 answer is no. Can I change the base class (java.lang.Object) to some other class?

Do I need to import the java lang package explicitly?

No, java.lang package is a default package in Java therefore, there is no need to import it explicitly. i.e. without importing you can access the classes of this package.

What is a package in Java?

In Java, the package is the collection of Java classes and interfaces. When we use the classes of a particular package, we need to import that particular package in which that classes are defined. The class uses the fully qualified name that includes the package name. In most of the basic Java programs, we do not import any package.

Is it possible to develop a Java program without the Java package?

Without java.lang package, development is not possible. But without java.util, or any other packages, we can still write any number of programs. That is the reason why java.lang package is being imported by default. Highly active question.