eclipse tips

Eclipse – How to know this class belongs to which JAR

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For example, I want to know this SpringBootApplication class belongs to which JAR or dependency : import org.springframework.boot.SpringApplication; import org.springframework.boot.autoconfigure.SpringBootApplication; @SpringBootApplication public class SpringBootWebApplication { public static void main(String[] args) throws Exception { SpringApplication.run(SpringBootWebApplication.class, args); } } Solution In Eclipse IDE, double clicks on the class name, press CTRL + SHIFT + T (win/*nix) or …

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How to change Eclipse theme

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In this tutorial, we will show you how to change the Eclipse Theme. Tools used : Eclipse 4.4 Luna, works on earlier version. Eclipse Color Theme Plugin Figure : This is how your final Eclipse IDE looks like 1. Install Eclipse Color Theme Plugin Install the theme plugin and restart Eclipse. Eclipse menu -> Help …

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How to add copyright to Eclipse automatically

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A quick guide to show you how to add @Copyright comment to new and existing Java files in Eclipse IDE. Solution 1. Eclipse Code Templates Go to preferences -> Java -> Code Style -> Code Templates, expands Code and select “New Java Files”, edit the template to add whatever copyright messages you want. Now, that …

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How to find Java class in Eclipse?

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In Eclipse IDE, you can type CTRL + SHIFT + T in Windows or *nix or Command + SHIFT + T in Mac OSX to prompt an Open Type dialog box to find details about a specified Java class. For example, if you want to know the detail of this Java class – FlatFileItemWriter (Spring …

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How to remove unused imports in Eclipse

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Often times, after code refactor or bug fixed, Eclipse IDE will show a yellow underline for all unsed imports at the top of your class and said “The import xxx is never used“. To remove those unused imports automatically, just click on the class and press the shortcut “Ctrl + Shift + O” to initilize …

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How to display line numbers in Eclipse

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By default, Eclipse’s editor will not display line numbers, it’s no good for debugging. Here’s a tip to show you how to turn on the “display line numbers” feature in Eclipse. In Eclipse IDE, select “Windows” > “Preference” > “General” > “Editors” > “Text Editors” , check on the “Show line numbers” option. See result.

Integrate Maven with Eclipse via External Tool Configuration

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During Eclipse development, it’s not practical to go outside of the Eclipse’s environment and execute Maven command in external console. In this article, we show you how to integrate Maven command with Eclipse IDE, via Eclipse’s “External Tool Configuration“. Normally, this external tool is used to run external command within Eclipse environment, and it works …

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