In this section, you will evaluate Java expressions using the Java scrapbook. The scrapbook can be used to experiment with Java code fragments before putting them into your program.
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In the Java perspective, click the Create a Scrapbook Page button in the workbench toolbar. |
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In Enter or select the folder field, type or browse below to select the JUnit project root directory ( JUnit ). |
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In the File name field, type MyScrap. The JPAGE file extension will be added automatically, if you do not enter it yourself.
Click Finish when you are done. |
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The scrapbook page opens in an editor in the editor area.
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In the editor, type System.get and then use content assist (Ctrl+Space) to complete the snippet as System.getProperties().
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Select the entire line you just typed and select Display from the context menu or select the equivalent item the editor toolbar or Run menu.
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When the evaluation completes, the result of the evaluation is highlighted in the scrapbook page. Note: Snippets can be inspected and run in a similar manner. |
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Save and close the snippet file by clicking the Close button in the view toolbar and then selecting Yes in the Save dialog. |