Package in Java is a mechanism to encapsulate a group of classes, sub packages and interfaces. Package For instance, to access a private field of an object from a different class, you need to: Get the object's Class … Java It is used to initialize the state of an object. Naming Conventions. java Konstruktoren, Methoden und Felder, die mit dem Modifikator protected gekennzeichnet sind, stehen auch in von der deklarierenden Klasse abgeleiteten Klassen anderer Packages zur Verfügung. The package modifier is more accessible than the private modifier. 如果Java源文件不包含package语句，在该文件中定义的类将位于“默认包”中。请注意，不能从非默认包中的类引用默认包中的类。 java关键字 private. The methods or variables declared as protected are accessible within the same package or different packages. Java compiler will automatically take the package name for this class. Log in. Method level — Allowed modifiers are public, private, protected, or package-private (default). Because of this access benefit, developers tend to create split … Java Packages - W3Schools The Keyword. W3Schools offers free online tutorials, references and exercises in all the major languages of the web. Java Package - javatpoint