1 / 9

CS7 Recitation

CS7 Recitation. Cem Akkaya. Outline. Homework-0 in detail Useful links and tools Setting up your java environment. HelloWorld. //HelloWorld program public class Hello { public static void main(String[] args) { System.out.println(“Hello World") ; } }.

nickan
Download Presentation

CS7 Recitation

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript


  1. CS7 Recitation Cem Akkaya

  2. Outline • Homework-0 in detail • Useful links and tools • Setting up your java environment

  3. HelloWorld //HelloWorld program public class Hello { public static void main(String[] args) { System.out.println(“Hello World") ; } } • java is case sensitive • Key words are reserved • main method is the starting point of each application • each statement ends with a semicolon • when you open a brace, you have to close it • the name of the java file has to be exactly the same as the class name (e.g. Hello.java)

  4. HelloWorld • A program consists of binary instructions, which are executed by CPU • Two steps to transform our source code in machine instructions (machine language) Figure from Java Tutorial @ http://java.sun.com

  5. HelloWorld • Java VM allows the same application (.class files) to run on multiple platforms- platform indepence Figure from Java Tutorial @ http://java.sun.com

  6. Upload Example

  7. Useful Links & Tools • Sun Developer Network (http://java.sun.com) • API Documentation (http://java.sun.com/javase/6/docs/api/) • Tutorial (http://java.sun.com/docs/books/tutorial/) • Google  • Integrated Development Environments (IDEs) • Eclipse (http://www.eclipse.org/) • NetBeans (http://java.sun.com) • jGrasp (http://www.jgrasp.org/) • Notepad++ (http://notepad-plus.sourceforge.net/) - not a IDE

  8. Setting up java environment • Download and install Java SDK from http://java.sun.com/ • Update the path environment variable • Windows Command Prompt (changes effective for session) • “set path=JAVA_DIR\bin” • “set path= %path%;JAVA_DIR\bin” • Windows Control Panel (changes are permanent) • Over Control Panel-Performance and Maintenance-System-Advanced-Environment Variables • In Unix systems setting environment variables is shell specific.

  9. Questions ?

More Related