30+ Eclipse Shortcuts Every Java Programmer Should Know
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- Опубліковано 7 вер 2024
- Eclipse has tons of shortcuts for you to code Java faster. But there are just so many hotkeys and keyboard shortcuts, which are the most useful?
We'll go through 30+ amazing shortcuts for the Eclipse IDE when coding in Java. Once you learn them, you'll be able to code all your Java programs faster, and waste less time doing work that the Eclipse IDE can do for you.
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Hi, I'm John! I'm a Lead Java Software Engineer and I've been in the programming industry for more than a decade. I love sharing what I've learned over the years in a way that's understandable for all levels of Java learners.
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1. Convert to Upper Case
Ctrl + Shift + X
2. convert to Lower Case
Ctrl + Shift + Y
3. System.out.println();
"sysout", then Crtl + Space
4. public static void main(String [] args) {}
"main", then Ctrl + Space
5. for loops
"for", then Ctrl + Space
6. "foreach" loops
"foreach", then Ctrl + Space
7. "while" loop
"while", then Ctrl + Space
8. "do while" loop
"do", then Ctrl + Space
9. if statements
"if", then Ctrl + Space
10. Move lines text up or down
Alt + Up or Down Arrow
11. Surround code with various stuff
Alt + Shift + Z
12. Automatically generate Getters and Setters
Right Click > Source > Generate Getters and Setters
12. (2) Cooler way to do the same thing
Alt + Shift + S, then R
13. Automatically generate Constructor using Fields
Right Click > Source > Generate constructors
13. (2) Cooler way to do the same thing
Alt + Shift + S, then O
14. Auto - format
Ctrl + Shift + F
15. Optimize imports
Ctrl + Shift + O
16. Comment or uncomment lines of code
Ctrl + /
17. Multi - line block comment
Ctrl + Shift + /
18. Rename variable, method, or class
Alt + Shift + R
19. Jump to line
Ctrl + L
20. View class outline
Ctrl + O
21. Extract method
Alt + Shift + M
22. Delete line
Ctrl + D
23. View call hierarchy
Ctrl + Alt + H
24. View class hierarchy
F4
25. Jump to beginning/ end of {}, (), or []
Ctrl + Shift + P
26. Increase or decrease font size
Ctrl + "+", Ctrl + "-"
27. Jump to method implementation
F3 or Ctrl + Click
28. Jump to variable declaration
F3 or Ctrl + Click
29. Open resource
Ctrl + Shift + R
30. Change tabs
Ctrl + PageUp, Ctrl + PageDown
31. Jump backward or forward in history
Alt + Left Arrow, Alt + Right Arrow
31. (2) Cooler way to do the same thing
Back or Forward Mouse Buttons
32. Run program
Ctrl + F11
33. View all keyboard shortcut
Ctrl + Shift + L
Thanks
When you hold CTRL+ALT+ DOWN you can duplicate the line that you have selected. Pretty useful!
But what about ubuntu user yar it doesn't work here in my system.. it just minimise and maximize the opened tabs and windows
@@tarikkirat can we change the settings of shortcuts
@@saiprasanthpk17 Yes. Press Ctrl + Shift + L. When shortcuts open, again press Ctrl + Shift + L. Then you can change.
Or you can go to preferences and change there.
@@sayyedwaliullah5587you have to remove the keymapping from Ubuntu if you don’t want to use it as a system shortcut, then eclipse will catch it
The getters and setters were actually life changing
Im in my Junior year of CS. The hours that I could have saved If I watched this earlier AHHH
Best shortcut is "coding with John". Will save you millennia. It's true.
Wish if known these earlier. Renamed some variables yesterday and scrolling up and down to see if I got them all was horrible.
Similar to moving lines up/ down using the Alt + Up/Down shortcut, We can replicate a piece of code by selecting the code and then press Ctrl + Alt + Down. This will create a copy of the selected code just below.
thanks for the tip
okay, this is my favorite thing ever im about to make some cleeeeeean code
So many useful ones in here.
On more is Alt + Shift + L to extract to variable
How does this one work? I bet you select some expression, and it makes a variable declaration/assignment with it, right?
As you mentioned, ctrl + f11 start run app. I'd like to add just f11. It starts debug mode app.
As an intellij user, when I had to use eclipse for a spring course, I was very miserable at first. This video helps a lot. Thanks.
Your videos are really really helpfull, this one in particular !
It gives me a real confidence boost & the feeling that I'm not completely lost.
Somehow you explain the funktion of java way better than my teachers without even using my native language.
I can even watch them for entertainment purposes.
Big Thanks !
The most underrated video I’ve seen on eclipse shortcuts. Awesome!!
I've been self teaching (meaning watching guides, trial and error learning, reading docs and so on) Java for almost a decade and sometimes I forget certain things myself than see your content which helps me understand a bit more too lol.
This is the most important video in my life as a Java developer using Eclipse and Eclipse based IDE like STS, thank you John!
With any doubts , you are the best teaching java in whole internet that I've ever seem. If you consider in the future get a patreon or something like that, I will be one of your subscriber surely
Really appreciate your sense of community and willingness to share. Our secondary benefit is that you are REALLY good at presenting your ideas clearly and quickly. Thank you.
I use the shorter "yso" Ctrl+space for the printing shortcut. A middle schooler told me about it!
You mean “syso”?
@@demirg nope, I mean "yso". I used to type "syso" then I found out that "yso" also works
I am subscribed to your channel, I watch almost all your videos, appreciate your work.
I must mention,
It was inappropriate for you to say "Would have slapped him on his face for not showing you shortcuts."
Professors want those fundamental concepts to be embedded in your head, hence stop you from using tools early on.
You can relate this, by observing how introducing a calculator early in American Secondary as well as High Schools almost cripple the students and majority of them suck at Math.
Compare this with students coming from of Chinese or Indian education systems, where they are forced to do mental calculations for roots, cube roots, squares, factors, trigo, geo, calculus..... you name it everything!!! Makes them way more competitive in Math or any technical knowledge.
Great demonstration. Thanks for sharing these useful shortcuts.
This vid is a must watch for new coders using eclipse
Just follow the step click on Window -> Preferences -> Java -> Editor -> Content Assist = Auto activation triggers for java.
Thanks John for the video. I really believe that learning shortcuts takes you and your devs to the next level!
IDEs do a LOT for us if we can learn to use what they can do.
00:03 Learn Eclipse shortcuts for faster Java programming
01:35 Understanding the main method and its components
03:11 Moving code and surrounding it with try catch blocks can be done with shortcuts.
04:51 Eclipse IDE provides shortcuts to generate getters and setters, constructors, and format code automatically.
06:31 Importing and organizing imports in Eclipse
08:11 Eclipse offers useful shortcuts for Java programming.
09:48 Eclipse IDE tips for easier code navigation and editing
11:21 Eclipse shortcuts can improve productivity
Thank you John for The most underrated video I’ve seen on eclipse shortcuts. Awesome!!
One very useful shortcut is shift+alt+j. It creates the template for either class or method documentation. It is most useful where methods have one of more parameters, a return type an perhaps some definition of generics.
I also have another observation to make... you talked about poor code formatting and also difficulty about finding the beginning and end of a block of code. I do not know (and don't need to know) the relevant shortcut that swithes between braces, because the problem is automatically resolved by the use of the Allman Coding Style, which I always apply. I would encourage you to present your sample code with that style.
I absolutley loved this video. my production just went sky high. Thanks so much.
This video is great! Thank you so much for sharing 😃
Control alt down to duplicate selected code block, that is really helpful
One of the greatest video about eclipse ever made. Thank you sir.
I will watch this video probably the most times of any of them. I know about 1/3 of them but the others are very useful...the CTRL-SHIFT-L is great but watching you do them while hearing you talk about them helps get them into the part of the brain they need to be in, automatic actions like scratching an itch...
Glad it was helpful! There are a bunch I didn't know about myself until I started doing the research for this video that I now use regularly.
@@CodingWithJohn Venkat Subramanian likes to joke that advanced Java programmers are obsessed with figuring out how to get their ides to write as much of their code for them as possible. This shows many, perhaps most of them, in one video. Some say not having the code there at all is better than not having to type it. Yeah, until you are debugging code you can't see, I think.
True. I do LOVE Lombok though and we use it throughout our applications. Add once you're familiar with each particular tool like that there's less and less need to debug through the code they generate.
Ctrl+1 and Ctrl+3 are the most useful shortcuts I know
I enjoy your videos, but would like to see you do one on swing and thread interaction.
Been subscribed for a while - great videos. I get your feeling, but speaking as a CS prof who has been teaching Java to undergrads for a long time, I also don't show these shortcuts to my students until they have mastered writing their own getters/setters and constructors, etc. Only after that they have mastered these concepts and skills, will I show them the shortcuts to avoid the more tedious aspects of it. Though I encourage them to explore "Eclipse Tricks and Tips" and if they discover this on their own before I show them, it's fair game.
By the way, curious, Eclipse or IntelliJ? I've been using Eclipse for ages, but taking a look at IntelliJ - I should check, maybe you have a video.
PS: Your Intro to Threading video is excellent and I have my students watch it.
Ctrl + Shift + X = makes all selected letters uppercase.
Ctrl + Shift + Y = makes all selected letters lowercase.
“sysout” then Ctrl + Space = System.out.println();
"main", then Ctrl + Space = public static void main(String[] args) {}
"for", then Ctrl + Space = "for" loops
"foreach", then Ctrl + Space = "foreach" loops
"do", then Ctrl + Space = "do while" loop
"if", then Ctrl + Space = "if" statement
Alt + Up or Down Arrow = Move lines of text up or down
Alt + Shift + Z = Surround code with various stuff
Right Click > Source > Generate Getters and Setters = Automatically generate Getters and Setters
Alt + Shift + S, then R = cooler way to do the same thing
Right Click > Source > Generate Constructor using Fields = Automatically generate constructos
Alt + Shift + S, then O = cooler way to do the same thing
Ctrl + Shift + F = Auto-format
Ctrl + Shift + O = Optimize imports
Ctrl + / = Comment or uncomment lines of code
Ctrl + Shift + / = Multi-line block comment
Alt + Shift + R = Rename variable, method or class
Ctrl + L = jump to line
Ctrl + O = View class outline
Alt + Shift + M = Extract method
Ctrl + D = Delete line
Ctrl + Alt + H = View call hierarchy
F4 = View Class hierarchy
Ctrl + Shift + P = Jump to beginning / end of {}, () or []
Ctrl + "+", Ctrl + "-" = Increase or decrease font size
F3 or Ctrl + Click = jump to method implementation
F3 or Ctrl + Click = jump to variable implementation
Ctrl + Shift + R = Open resource
Ctrl + pageUp, Ctrl + PageDown = Change tabs
Alt + Left Arrow, Alt + Right Arrow = Jump backward or forward in history
Back or Forward Mouse Buttons = cooler way to do the same thing
Ctrl + F11 = Run program
Ctrl + Shift + L = View all keyboard shortcuts
You can perform fast scrolling by holding alt or option key. This is pretty useful when you have large code.
I love your short videos I am studying for java certification and your videos really make things clear for me.
John, these timesavers are amazing! Makes coding more fun than work. Cheers.
Hey love your videos!!! Could you also do a quick video on how we can customise Eclipse like dark theme, and how to use different colors for variables, data type, etc. Would love to see that
Kudos for making such a useful video on this , its very helpful for java programmers who work on eclipse as their IDE.
clt + n = new project / new class
clt + m = maximize / minimize window
clt + 1 = suggestion
output =
fore = for each loop
alt + up / down arrow = up / down a line
clt shift + l = open a shortcut key list
clt + shift + t = open a window for all classes
clt + d = looking hirearkey
clt + d = delete a perticular selectin / unselect line
clt + l = go to a perticular line
clt + q = go to the last edit
clt + o = outline of the current class
alt + shift + r = refector
alt + shift + m = extract a method
alt + shift + r = refector
alt + shift + s = generate getters and setters
clt + shif + f = format the code
1) Find a class -
Navigate > Open Type... > type the class name
2) View list of methods -
right-click > quick outline
3) Searching for text -
ctrl + F
4) Searching in multiple files -
Search > Search...
5) View method declaration
Right-click > Open Declaration
6) Find references for a method
Right-click > References > Workplace
7) Call hierarchy: sequence of method calls
Right-click > Open Call Hierarchy
8) Generate Getters and Setters
Right-click > Source > Generate Getters and Setters...
9) Override / Implement Methods
Right-click > Source > Override / Implement Methods...
10) Formatt the code
Right-click > Source > formatt
11) Extract Constants
Select the constants > Right click > Refactor > Extract Constrant
12) Extract Local Variable
Select the code portion > Right click > Refactor > Extract local variable
13) Extract Method
Select the code portion > Right click > Refactor > Extract method
14) Rename Method / Integer
Select method / integer name > right-click > rename…
Thanks for the incredible tricks! If I accidentally hit something and don't know where and I want to go back where I was, what will be the shortcut?
Scrolling faster: Hold CTRL and use mouse-scroll. You can scroll-over 100-200 rows like a charm.
Amazing! This is so helpful!
ctrl + 1 - most used.
Very useful tutorial, making daily work easy and smooth to write.
If possible can you create one for IntelliJ IDE also. Thanks a lot for you work.
0:58 "so you can immediately just start typing out .. "whatever you want""
I had to giggle a bit :D
Thank you for all the knowledge you have given in your videos
Instead of sysout you can just type syso. Excellent video. I've been wondering about some of these. Thanks.
Super useful. Thanks.
Your videos are consistently amazing, thanks John!
This makes life soooo much easier! Subscribed!
Thank God. It was Damn helpful.
Thank you for useful short cuts.
Damn, that professor making you type out getters really wanted to teach you a lesson :) I guess it worked
Great teacher. Thank you for all your Java videos.
alt + up or down arrow keys to move whole line codes up and down.
ctrl + alt + up or down arrow keys to duplicate whole line of codes
THE best!! Really helpful and excellent explanations! Thank you so much!
Great video. Trusting you that you covered all of most important ones, but thanks for showing where to find the rest of them! Lol
ALT SHIFT L -> extract to variable, most usefull with alt shift r :)
Ctrl-Shift-R also takes the upper case letters of a class - e.g. MSC for MySimpleClass
Thank you. This is really relevant. God bless your channel.
thnx , very helpfull . that make easy to switch to eclips
Wow. That's really helpful. Thanks a lot.
Alt-Shift-J to generate javadoc!
Great video! Thank you John.
Take my tip with a grain of salt. The best shortcut is Alt + F4 and install IntelliJ.
First year student watching this now so I can save maximum time 😎
Please make a video on intellij shortcuts
thank you john
can you do the same thing with intelliJ shortcuts please?
You started slow and then become 1000 miles / per hour speed.....is there any short cut to slow your video speed...lol...good stuff really helpful
THANKS A LOT. IT WAS A LIFE SAVER
Hi All! anything which works similar as ctrl + w in Intellij - the shrtcut to select range with possibility to extend while next usage? Does anyone know?
Ctrl+Shift+T opens a search box where you can search for all the java files in your project.
how to see inbuild methods code like Math methods , is there any shortcut for it.
How do you change the variables in mac?? I'm trying and is not working :(
Could you please do the video of debugging the code in real time environment
Please make video on STS
I was about to subscribe, but then I realized that I already am.
please explain one video on serialization and desirialazation
So whenever in doubt, just hit Ctrl + Space after the thing you want, got it.
Thank you so much
Thanks. Very useful 👍
Why do you use Eclipse if there is Intellij IDEA?
This video is awesome
Awesome, thank you so much ^^
Thank you for your videos! Would be best if you talk a bit slower for those non-english speakers hehe
Hope you are doing well. i have a specific request . Can you please provide inputs for writing a secure code in Java.
Ctrl +shift +g
To know all the method references
Thank you so much !
Very helpfull and nice video....
Can you create a similar shortcuts video for Intellij
HI. I have a Hamletic doubt. In Java lang is it possible to create an interpolated string like it happens in languages like Python, PHP, C# or others? I know I can use "a = %d".formatted(myIntVar); but I would like to know if something like "a = {myIntVar}" is also possible. Waiting for help
Thank you very much , your amazing
Well done
6:11 you don't actually need to highlight the code, it'll work the same
at 2:54 how are you able to get eclipse to say "condition" within the ()? My eclipse autofills or disappears and I don't want that. I want to know what's supposed to go in that () because I'm still very new.
Best Eclipse shortcut: Alt-F4 on Windows or Cmd-Q on Mac. Then install IntelliJ ;-)
Shots fired
just thanks!!!
Your the best!
1:00 For some reason when I use this shortcut on sysout, it gives me a list with options (sysout, syserr, mains args, args) instead of directly converting it to System.out.println(). Do I have to enable any option for it to work?