Is there a way Eclipse will auto import classes from java package as java.util.List
without the need to choose it explicitly in every class?
(even without Ctrl + Shift + O)
When I write List and eclipse auto import java.util.List
instead of suggesting irrelevant List as org.apache.xmlbeans.impl.xb.xsdschema.ListDocument.List
I know I can exclude by Type Filters, but I just want specific objects as List to be automatically imported.
In above situation, Eclipse comes with a nice feature called “Organize Imports” to imports all the classes that are used, automatically.
Press: CTRL + SHIFT + O and you should see below dialog boxes. Choose your desired import package and click next. It will prompt you for your next import and thats it. You are done.
Click Source —> Organize Imports menu item or Shift+Ctrl+O in Eclipse, then the java class will be imported in the java source file automatically. 2. Auto Import Java Class In All Java Project Files. If you have a lot of java source file need auto import used java classes, you can config your java project to achieve it.
Auto Import Java Class In Single Java File. Input the class name in the java source file. Click Source —> Organize Imports menu item or Shift+Ctrl+O in Eclipse, then the java class will be imported in the java source file automatically.
By default, Eclipse imports classes individually but you can tell it to always convert them into wildcards: Go to Window > Preferences > Java > Code Style > Organize Imports. Change the value of Number of imports need for .* to 0.
Though the unused import in a Java file does not create any harm, it’s unnecessary to increase the length and size of a Java source file, and if you have too many unused imports in your Java source file, those yellow underlines and Eclipse warnings affect the readability of your code, at least it distracts you.
Automatically organise import statements whenever you save
Let Eclipse collapse imports in the same package a wildcard (.*) or always expand them
Exclude unwanted packages using Type Filters
some these other features
Folding: By default, Eclipse folds all import statements into one line so your class takes up less space on the screen. You can change this by going to Window > Preferences > Java > Editor > Folding and deselecting Imports.
Sorting: If you’re really particular about the order of packages, you can go to Window > Preferences > Java > Code Style > Organize Imports and define the order of the packages as you want Eclipse to order them. It’s not really worth the effort though so I’d skip it.
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