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Cours IUT - CSID 2012
Eclipse Hands On
Tip & Tricks, Shortcut, Quick Features
This document: http://arnaud.nauwynck.free.fr/CoursIUT/CoursIUT-Eclipse-HandsOn.pdf
Outline
● Eclipse Eclipse Eclipse … JDT● Resources: Doc, Tutorials, Help, …
● Navigation, Search Tips● Editor Tips● Refactoring Tips● Debugging Tips
Eclipse … Google It
Wikipedia
Eclipse Plugins Ecosystem
● not only JDT(Java IDE)
● Very Rich...
● Confusing?… Consistent
Eclipse Beginner's Guide
● http://wiki.eclipse.org/Main%5FPage● http://eclipsetutorial.sourceforge.net/index.html● http://www.eclipse.org/home/newcomers.php● http://eclipsetutorial.sourceforge.net/totalbeginner.html● http://www.vogella.com/articles/Eclipse/article.html● http://agile.csc.ncsu.edu/SEMaterials/tutorials/e
clipse/eclipse%5Ftutorial%5F3.3.html● ...
http://www.eclipse.org/resources/
Eclipse Help
MUST READ !!!
Examples of Tips &Tricks
Eclipse Built-in Tutorials
Eclipse Navigation Tips
Navigation Shortcuts
● Search : Ctrl + T (T = Types: class, interface, enum...)
cf also Ctrl + R (R = Resources: files, folder..)
Camel Case Names
● “Camel Case” : Split Words + UpperCase first letter of words
● English => read Right to Left for class behavior
● example: “ObjectInputStream”● = A Stream● More precisely... an Input stream● More.. an Object input
● Other examples: NPE = NullPointerException, OOME● MUST known for JDK !!
Ctrl+T (Search) + Camel Case
● To search for ObjectInputStream● You can use
● OIS● O*I*S*● Obj*Inp*Stream● ObjectInputStream● java.io.ObjectInputStream
Search Within a File
● “Ctrl + F” (then next Ctrl+K)=> search text exact case-sensitive case-insensitive Regular expression
● “Ctrl + O”Search member => methods, fields
● “Ctrl + L”Goto Line
Other Useful Navigate Keys
● Shift+Ctrl+P = Go to matching bracket
● Ctrl+. = Go to next error
● Shift+Ctrl+UP/DOWN = next member
● Alt+LEFT (back) / Alt+RIGHT (forward)
Ctrl+O
● Search members...
● Filter by prefix
only in declared class
● Filter by regexp
● Show ALL (inherited)Ctrl+O
Search in Multiple Files
● Ctrl +H idem Ctrl+F, but in all files● Can search by Text, by Java, by Task...● Can search by Working Set
Customize ...
Working Set
Search By Regular Expression
● Very powerfull in eclipse …● Standards: (), *, ?, \( \) *, [^], .● Non-standards:
● \s = any space● \w = any letter/digit from a word● (s?) = multi-line regexps
● Replace● ( .. ) = capture block \(, \) for parenthesis● => $1, $2, … captured blocks
Open Call Hierarchy Ctrl + Alt + H
Type Hierarchy Ctrl+T , F4● Ctrl+T On a Type => show all its sub-types
In a View: F4In a Floating Tip View: CTRL+T
Ctrl+T on Method => search impl in sub-class
● Design Pattern => Use interfaces not classes... Pb: difficult to navigate Solution: Ctrl+T
Method Override / Implement
● Upward Triangle = see Up in parent class
Empty Triangle : implements (super = abstract)
Full Triangle : override (super = concrete)
Resource Explorer / Filter
● Use Java View for Java / Resource View for … ● See Also Perspective
Filter: Hide
NOTHING
= show all ...
Extensions to Show:
NothingBUTResources
Eclipse Editor Tips
Shift + Ctrl + O = Organize Import
● NEVER do manually !!● Customize Order, Type Filter:
Window>Preferences>Java
Ctrl + 1 … QuickFix
● Example: ● Method does not exists => Create it● Method not public => change visibility
● Ctrl+1 = Right Click on fault = Click on Pb
Ctrl + SPACE
● => AUTOCOMPLETION
● Code Template, Example:sysout + Ctrl+SPACE => System.out.println()main + Ctrl+SPACE => public static void main(...for =>
User-Defined Code Template
● Frequent use : Logger (SLF4J), Separator, constructor, serialId, ...
Auto Import
Generate Code
Replace var by contextual value
Customize Code Template
Window > Preferences > Java > Editor > Templates
Source Menu – Shift+Alt+S
● Classical needs : getter/setter equals(), hashCode(), toString()...
Getter / Setter Code Generator
Shift+Alt+S (Source) > R (getter) > Alt+A (all) > ENTER (OK)
Equals/HashCode Code Generator
Shift+Alt+S (Source) > H (hashcode) > ENTER (OK)
More Code Generator...
● Example : Delegates
Eclipse Refactoring Tips
Rename
● For a File : F2 (standard shortcut)● For all others : Shift+Alt+R● In place edition... (class, local var, ...)
Refactoring Menu: Shift+Alt+T
Extract Method : Shift+Alt+M
Select fragment (including ending “;”Shift+Alt+M (method)
Detected 2 calls
Extract Local Var : Shift+Alt+LSelect expr (not stmt: no ending “;”)
Shift+Alt+L (local)
Detected 2 uses
Eclipse Debugging Tips
F11 = Start / Debug / Relaunch
● Note: use the Debug Perspective to Debug
● Press F11 on method with @Test=> start JUnit
● Press F11 on main() => start● Press F11 on existing launch => re-start
F5 < F6 < F7 < F8
● Take your four fingers on keys F5 .. F8
● F5 = step into
● F6 = step over
● F7= step out
● F8 = resume
Conclusion
Questions ?
This document:http://arnaud.nauwynck.free.fr/CoursIUT/CoursIUT-Eclipse-HandsOn.pdf