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To make other classes, interfaces, or packages accessible in the current source code, without having to type the full name.
A keyword that defines a special type of class that contains only abstract methods and constants. It can be implemented and extended by one or more interfaces.
It is used to implement an interface to inherit. To declare a class that only contains abstract methods.
A keyword that is used to declare a class and inherits from the superclass.
A primitive data type that can store 64-bit integers, ranging from -9223372036854775808 to 9223372036854775807.
To implement in a different language, not in Java, a native modifier is used. Work with Java Native Interface and prefixed with the native keyword.
A primitive data type that can store 32-bit signed (Operating System dependent) integers, ranging from -2147483648 to 2147483647.
Which executes a block of code if a condition of the 'if' statement is false. It always exists in pairs with an 'if' block. Used when two relative conditions appear.
It executes a block of code iteratively for a specified number of times until a condition is met.