Basic program...

                                     

• First basic program of java. 

what is keyword?In the Java programming language, a keyword is any one of 57 reserved words that have a predefined meaning in the language because of this programmers cannot use keywords as names for variables, methods, classes or as any other identifier. Of these 57 keywords, 55 are in use and 2 are not in use. Due to their special functions in the language, most integrated development environments for Java use syntax highlighting to display keywords in a different color for easy identification.