| <?xml version="1.0" encoding="UTF-8"?> |
| <cheatsheet title="Create a Hello World application"> |
| <intro href="/org.eclipse.platform.doc.user/reference/ref-cheatsheets.htm"> |
| <description> |
| This cheat sheet shows you how to create the famous "Hello World" application and try it out. You will create a Java project and a Java class that will print "Hello world!" in the console when run.<br/> |
| <br/> |
| If you need help at any step, click the (?) to the right. Let's get started! |
| </description> |
| </intro> |
| <item title="Open the Java perspective" dialog="false" skip="false" href="/org.eclipse.platform.doc.user/concepts/concepts-4.htm"> |
| <description> |
| If you're not already in the Java perspective, in the main menu select <b>Window</b> > <b>Open Perspective</b> > <b>Java</b> or click on the "Click to Perform" link below. |
| </description> |
| <command serialization="org.eclipse.ui.perspectives.showPerspective(org.eclipse.ui.perspectives.showPerspective.perspectiveId=org.eclipse.jdt.ui.JavaPerspective)" required="false" translate=""> |
| </command> |
| </item> |
| <item title="Create a Java project" dialog="true" skip="false" href="/org.eclipse.jdt.doc.user/concepts/concept-java-project.htm"> |
| <description> |
| Before creating a class, we need a project to put it in. In the main toolbar, click on the <b>New Java Project</b> button, or click on the link below. Enter <b>HelloWorld</b> for the project name, then click <b>Finish</b>. |
| </description> |
| <command serialization="org.eclipse.ui.newWizard(newWizardId=org.eclipse.jdt.ui.wizards.JavaProjectWizard)" required="false" translate=""> |
| </command> |
| </item> |
| <item title="Create your HelloWorld class" dialog="true" skip="false" href="/org.eclipse.jdt.doc.user/gettingStarted/qs-9.htm"> |
| <description> |
| The next step is to create a new class. In the main toolbar again, click on the <b>New Java Class</b> button (or the link below). If not already specified, select <b>HelloWorld/src</b> as the source folder. Enter <b>HelloWorld</b> for the class name, select the checkbox to create the <b>main()</b> method, then click <b>Finish</b>.<br/> |
| <br/> |
| The Java editor will automatically open showing your new class. |
| </description> |
| <command serialization="org.eclipse.ui.newWizard(newWizardId=org.eclipse.jdt.ui.wizards.NewClassCreationWizard)" required="false" translate=""> |
| </command> |
| </item> |
| <item title="Add a print statement" dialog="false" skip="false" href="/org.eclipse.jdt.doc.user/concepts/concept-java-editor.htm"> |
| <description> |
| Now that you have your HelloWorld class, in the <b>main()</b> method, add the following statement:<br/> |
| <br/> |
| System.out.println("Hello world!");<br/> |
| <br/> |
| Then <b>save</b> your changes; the class will automatically compile upon saving. |
| </description> |
| </item> |
| <item title="Run your Java application" dialog="false" skip="false" href="/org.eclipse.jdt.doc.user/gettingStarted/qs-12.htm"> |
| <description> |
| To <b>run</b> your application, right-click on your class in the Package Explorer and select <b>Run As</b> > <b>Java Application</b>. The <b>Console</b> view should appear at the bottom and display the "Hello, world!" output.<br/> |
| <br/> |
| Congratulations! You have successfully created a Hello World |
| application! |
| </description> |
| </item> |
| </cheatsheet> |