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| <title>Creating a Java application launch configuration</title> |
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| <h1> Creating a Java application launch configuration </h1> |
| <p> When you choose <strong>Run >Run As >Java Application </strong>to |
| launch your class, you are running your class using a generic <strong>Java |
| Application</strong> launch configuration that derives most of the launch |
| parameters from your Java project and your workbench preferences. In |
| some cases, you will want to override the derived parameters or specify |
| additional arguments. </p> |
| <p> You do this by creating your own <strong>Java Application</strong> launch |
| configuration. </p> |
| <ol> |
| <li> Select <a class="command-link" href='javascript:executeCommand("org.eclipse.debug.ui.commands.OpenRunConfigurations")'> <img src="PLUGINS_ROOT/org.eclipse.help/command_link.png" alt="Opens the Run Launch Configurations dialog"> <strong>Run > Run...</strong></a> or <a class="command-link" href='javascript:executeCommand("org.eclipse.debug.ui.commands.OpenDebugConfigurations")'> <img src="PLUGINS_ROOT/org.eclipse.help/command_link.png" alt="Opens the Debug Launch Configurations dialog"> <strong>Run > Debug...</strong></a> from the workbench menu bar. This opens a dialog that lets you |
| create, modify, and delete launch configurations of different types. </li> |
| <li> Select <strong>Java Application</strong> in the left hand list of launch |
| configuration types, and press the <strong>New</strong> button in the toolbar. |
| This will create a new launch configuration for a Java application. The |
| tabs on the right hand side allow you control specific aspects of the launch. </li> |
| </ol> |
| <blockquote> |
| <ul> |
| <li>The <strong>Main</strong> tab defines the class to be launched. Enter |
| the name of the project containing the class to launch in the project field, |
| and the fully qualified name of the main class in the Main class field. Check |
| the <strong>Stop in main</strong> checkbox if you want the program to stop |
| in the main method whenever the program is launched in debug mode.<br> |
| Note: You do not have to specify a project, but doing so allows a |
| default classpath, source lookup path, and JRE to be chosen.</li> |
| <li>The <strong>Arguments</strong> tab defines the arguments to be passed |
| to the application and to the virtual machine (if any). You can also specify |
| the working directory to be used by the launched application.</li> |
| <li>The <strong>JRE</strong> tab defines the JRE used to run or debug the |
| application. You can select a JRE from the already defined JREs, or define |
| a new JRE.</li> |
| <li>The <strong>Classpath</strong> tab defines the location of class files |
| used when running or debugging an application. By default, the user and |
| bootstrap class locations are derived from the associated project's build |
| path. You may override these settings here.</li> |
| <li>The <strong>Source</strong> tab defines the location of source files used |
| to display source when debugging a Java application. By default, these settings |
| are derived from the associated project's build path. You may override these |
| settings here.</li> |
| <li>The <strong>Environment</strong> tab defines the environment variable |
| values to use when running or debugging a Java application. By default, |
| the environment is inherited from the Eclipse runtime. You may override |
| or append to the inherited environment. </li> |
| <li>The <strong>Common</strong> tab defines general information about the |
| launch configuration. You may choose to store the launch configuration |
| in a specific file and specify which perspectives become active when the |
| launch configuration is launched.</li> |
| </ul> |
| </blockquote> |
| <p> <img border="0" src="../images/ngrelc.png" alt="Related concepts" > </p> |
| <p> <a href="../concepts/cdebugger.htm">Debugger</a><br> |
| <a href="../concepts/clocdbug.htm">Local debugging</a> </p> |
| <p> <br> |
| <img border="0" src="../images/ngrelt.png" alt="Related tasks" > </p> |
| <p> <a href="task-choose_config_jre.htm">Choosing a JRE for launching a project</a><br> |
| <a href="task-launching_java_program.htm">Launching a Java program</a><br> |
| <a href="tasks-executionArgs.htm">Setting execution arguments<br> |
| </a><a href="../tasks/tasks-9.htm">Changing debugger launch options</a> </p> |
| <p> <img border="0" src="../images/ngrelr.png" alt="Related reference" > </p> |
| <p> <a href="../reference/preferences/run-debug/ref-run_debug.htm">Debug preferences</a><br> |
| <a href="../reference/views/debug/ref-debug_view.htm">Debug view</a><br> |
| <a href="../reference/menus/run/ref-menu-run.htm">Run Menu </a> </p> |
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