Saturday, 4 May 2013

Most useful shortcuts in Eclipse.

As mentioned earlier for writing and debugging Java code there are two widely used IDE's
  • Eclipse
  • Netbeans
Though each of them have their own pros and cons, Eclipse is the most common choice of the programmers. Main reason being it's simplicity.

So lets take a look at various shortcuts that come handy while using Eclipse.

Manage Files and Projects

Ctrl + N Create new project using the Wizard
Shift + Alt + N Create new project, file, class, etc
Ctrl + Shift + R Open Ressource (file, folder or project)
Ctrl + S Save current file
Ctrl + Shift + S Save all files
Ctrl + W Close current file
Ctrl + Shift + W Close all files
F5 Refresh content of selected element with local file system

Navigate in Editor

Ctrl + L Jump to Line Number. To hide/show line numbers, press ctrl+F10 and select 'Show Line Numbers'
Ctrl + Q Jump to last location edited

Indentions and Comments

Tab / Shift + Tab Increase / decrease indent of selected text
Ctrl + I Correct indention of selected text or of current line
Ctrl + F Autoformat all code in Editor using code formatter
Ctrl + / Comment / uncomment line or selection ( adds '//' )
Ctrl + Shift + / Add Block Comment around selection ( adds '/*... */' )
Ctrl + Shift + J Add Element Comment ( adds '/** ... */')

Editing Source Code

Ctrl + Space Opens Content Assist (e.g. show available methods or field names)
Ctrl + 1 Open Quick Fix and Quick Assist

Code Information

Ctrl + O Show code outline / structure
F2 Open class, method, or variable information (tooltip text)
F3 Open Declaration: Jump to Declaration of selected class, method, or parameter
Ctrl + T Show / open Quick Type Hierarchy for selected item
Ctrl + move over method Open Declaration or Implementation


Alt + Shift + R Rename selected element and all references

Run and Debug

Ctrl + F11 Save and launch application (run)
F11 Debug
F5 Step Into function
F6 Next step (line by line)
F8 Skip to next Breakpoint
F7 Step out

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