JAVA (keywords)

JAVA

LIST OF JAVA KEYWORDS

KEYWORD: PURPOSE

• ABSTRACT: It declares that a class or method is abstract
• ASSERT: Used to specify assertions
• BOOLEAN: Declares that variable is a Boolean type
• BREAK: Used to exits a loop before the end of the loop is reached
• BYTE: Declares that variable is byte type
• CASE: To represent different conditions in a switch statement
• CATCH: Used for handling exceptions
• CHAR: Declares that variable is a character type
• CLASS: Signals the beginning of a class definition
• CONST: This keyword is reserved by java but now it is not in use
• CONTINUE: Prematurely return to the beginning of a loop
• DEFAULT: Default action in a switch statement
• DO: Begins a do while loop
• DOUBLE: Declares that variable is a double type
• ELSE: Signals the code to be executed when if condition executes to false
• EXTENDS: Specifies the class base from which the correct class is inherited
• FINAL: Declares that a class may not be extended or that a field or method may not be overridden
• FINALLY: Declares a block of code guaranteed to be executed
• FLOAT: Declares a floating point variable
• FOR: Start a for loop
• GOTO: This keyword is reserved by java but now it is not in use
• IF: Keyword to represent a conditional statement
• IMPLEMENTS: Declares that this class implements the given interface
• IMPORT: Permits access to a class or group of classes in a package
• INSTANCE OF: Tests whether an object is an instance of a class
• INT: Declares an integer variable
• INTERFACE: Signals the beginning of an interface definition
• LONG: Declares a long integer variable
• NATIVE: Declares that a method that is implemented in native code
• NEW: Allocates memory to an object dynamically
• PACKAGE: Defines the package to which this source code file belongs
• PRIVATE: Declares a method or member variable to be private
• PROTECTED: Declares a class, method or member variable to be protected
• PUBLIC: Declares a class, method or member variable to be public
• RETURN: Return a value from a method
• SHORT: Declares a short integer variable
• SUPER: A reference to the parent of the current object
• SWITCH: Tests for the truth of various possible cases
• SYNCHRONIZED: Indicates that a section of code is not thread-safe
• THIS: A reference to the current object
• THROWS: Declares the exceptions thrown by a method
• TRANSIENT: Data should not be serialized
• TRY: Attempt an operation that may throw an exception
• VOID: Declares that a method does not return a value
• VOLATILE: Warns the compiler that a variable change asynchronously
• WHILE: Begins a while loop

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