Java compiler imports java. lang package internally by default. It provides the fundamental classes that are necessary to design a basic Java program. … In this program, we have not imported any package.
What is Java default package?
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.
Does Java automatically import Java Util?
Current Java package is automatically imported by Java compiler.
Which package is always imported by default?
The java. lang package is always imported by default.
What is import Java util * in Java?
util. Java util package contains collection framework, collection classes, classes related to date and time, event model, internationalization, and miscellaneous utility classes. … On importing this package, you can access all these classes and methods.
What is the Java util package?
util Description. Contains the collections framework, legacy collection classes, event model, date and time facilities, internationalization, and miscellaneous utility classes (a string tokenizer, a random-number generator, and a bit array).
Where is the Java util package?
util. *, these live in the “lib” directory under wherever your Java Runtime Environment (JRE) is installed. In there, you should see files like rt. jar which contains the core Java classes and charsets.
What is built-in packages in Java?
A java package is a group of similar types of classes, interfaces and sub-packages. … There are many built-in packages such as java, lang, awt, javax, swing, net, io, util, sql etc. Here, we will have the detailed learning of creating and using user-defined packages.
What does Java automatically import?
Java compiler automatically imports two packages: java. lang and the current package.
Why import statement is used in Java?
An import statement tells Java which class you mean when you use a short name (like List ). It tells Java where to find the definition of that class. You can import just the classes you need from a package as shown below. … Another option is to import everything at the same level in a package using import packageName.
What package is implicitly imported in any Java program?
lang package is implicitly imported by every Java source file. In other words, you can refer to all of the classes and interfaces in java.
Why we do not import Java Lang package?
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.
Why does Java Lang package automatically import?
lang is auto-imported by every java program we write, hence all the classes in it are automatically available to us.