What is a public class in Java?

Public Class: the public is a Java keyword that declares a member’s access as public . Public members are visible to all other classes. This means that any other class can access a public field or method. Further, other classes can modify public fields unless the field is declared as final.

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What type of class is Java Lang system?

lang. System class in Java. Among the facilities provided by the System class are standard input, standard output, and error output streams; access to externally defined properties and environment variables; a means of loading files and libraries; and a utility method for quickly copying a portion of an array.

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