When the compiler sees //, it ignores all text after // on the same line. In Java, comments are preceded by two slashes ( //) on a line, called a line comment, or enclosed between /* and */ on one or several lines, called a block comment or paragraph comment. They are not programming statements and thus are ignored by the compiler. Comments help programmers to communicate and understand the program. Line 3 is a comment that documents what the program is and how it is constructed. Other keywords in this program are public, static, and void. For example, when the compiler sees the word class, it understands that the word after class is the name of the class. Keywords have a specific meaning to the compiler and cannot be used for other purposes in the program. Every statement in Java ends with a semicolon ( ), known as the statement terminator. On Mac OS X systems, click the NetBeans IDE application icon. On Solaris OS and Linux systems, you execute the IDE launcher script by navigating to the IDE's bin directory and typing. A string must be enclosed in double quotation marks. On Microsoft Windows systems, you can use the NetBeans IDE item in the Start menu. String is a programming term meaning a sequence of characters. This statement displays the string Hello World ! on the console (line 4). The main method in this program contains the statement. A method is a construct that contains statements. The main method is the entry point where the program begins execution. The program is executed from the main method. In this example, the class name is HelloWorldApp. By convention, class names start with an uppercase letter. ![]() ![]() Every Java program must have at least one class. Big application to development many module learing advance level of. Display message Hello World! on the console Mini like small application are use for learning a basic level of PHP programming skills.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |