At the end of this post, you should be able to run a simple java program using the IDE. While the print(), does not insert a new line it remains on the same line as the output.In this tutorial, we would go through the basics of working with IntelliJ IDEA IDE. The println() insert a new line after the message prints. The out object represents the screen window. In the statement (“Hello Java World”), out is an object. The println() prints a line of output on the screen. The println() requires only one argument. The dot in are used to separate the class, object, and method. Any literal string is written between double quotation in Java Programming Language because the string is an argument for a method, and arguments to methods are always appear within parentheses. The text “Hello Java World” is a literal string of characters that will be appear in output exactly as entered. The Code line (“Hello Java World”) will really work in this program. If any of the above requirements is not met, the program will compiles, but will not be able to start and will give us a message error because it contained no starting point. most programmers choose a name args or argv. In our example, the parameter is said argument, but this is not optional parameter can have any name. Places of public and static modifiers can be exchanged. The method must be declared as just illustrated, it should be public, static and void, must have a name and a main list of parameters must have a single parameter of type array String. each program a Java method starts from main() with the signature : public static void main(String args) The second line defines a function(method) and methods of main(), which a gateway or starting point for the program. All program code that will define the Hello class will be placed inside these curly braces. The program name is declared after the class keyword, followed by a pair of curly braces. We’ll be covering the following topics in this tutorial:
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