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Java Enumeration or Enum is nothing but a Class with a List of Constants, Constructors, Instance Variables and Instance Methods.
Java programming language has built-in support for Primitive Data types like byte, short, int, long, float, double, char and boolean.
A Java 7 try-with-resources block automatically closes any opened resources even if you do not close. It is like the regular try block with the extra support of Parentheses "( )" to initialize multiple Resources.
Java Exceptions are runtime errors that stop the execution of the program suddenly. Java Exception handling is done using the keywords namely try, catch, finally, throw and throws.
Java access modifiers allow programmers to control and safeguard data like variables and methods of a class.
Java Packages are containers for CLASS files with a folder structure. Packages allow us in Visibility and Namespace management of Java Classes, Variables and Methods.
Java 1.8 or Java 8 introduced new features in Interface namely STATIC method and Java DEFAULT method. These are against the concept of an interface is a 100% abstract class. Let us know more with examples in this Last Minute Java Tutorial.
Java Interface is nothing but a 100% abstract class and the keyword used to define it is the "interface<
A Java Abstract Class is nothing but a class with one or more unimplemented methods. These incomplete methods should be implemented by the first Concrete subclass of an abstract class. Let us know more about Abstract Classes in this Last Minute Java Tutorial.