You can use Eclipse’s powerful features smartly while coding using this editor.  These tips will help you handle eclipse like a pro and be more productive:

Tip 0: Ctrl + Shift + L -> Displays list of shortcuts. 

Tip 1: Changing Font for Code Editor: 

Tip 2: Maximizing & Minimizing Opened File. 

Tip 3: Shortcut for writing commands (Auto Suggestion Feature) 

Tip 4: Auto selection of available option. 

Tip 5: Alt + Up or Alt +Down. 

Tip 6: Debugging. 

Tip 7: Auto format your code while saving a file. 

Tip 8: Remove unused imports while saving file. 

Tip 9: Comment out block of code. 

Tip 10: Check entire hierarchy of the class. 

Tip 11: Delete entire line: 

Tip 12: Jump to any particular line. 

Tip 13: Move to line you last edited. 

Tip 14: Rename the class. 

Tip 15: Collapse all code blocks.

Tip 16: Fix Keyboard Setup.

Tip 17: Jump to Matching Bracket .

Tip 18: Insert main method in a class. 

Tip 19: Adding Code around a block of code. 

Tip 20: Create Getters & Setters for a class: 

 

Tip 0: Ctrl + Shift + L -> Displays list of shortcuts

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Tip 1: Changing Font for Code Editor:

Go to Window -> Preferences -> General -> Appearance -> Colors and Fonts and change colors and fonts for your editor.

Tip 2: Maximizing & Minimizing Opened File

In order to maximize or minimize opened window use Ctrl + M

It will maximize the current view or editor. Press Ctrl+M again and it goes back to the previous size.

Shortcut for Window > Navigation > Maximize Active View or Editor.

Tip 3: Shortcut for writing commands (Auto Suggestion Feature)

Write syso & press Ctrl + spacebar . Click Enter. It will complete the command.

System.out.println(“Hello World”);

Similarly you can write command starting with any letter e.g. write bigd (short for BigDecimal)& then press ctrl + spacebar.

Tip 4: Auto selection of available option

Write starting letters and press Ctrl + 1 and it will show what can be done using these letters.

Tip 5: Alt + Up or Alt +Down

Line Moves Up or down. It works with single line as well as multiple selections of lines.

Tip 6: Debugging

Add/Remove Breakpoint – Just double click at the start of line to toggle breakpoint.

Step Into = F5

To continue executing rest of the program = F8

Change to Debug Perspective and then debug your code. You can also use conditional breakpoints.

Tip 7: Auto format your code while saving a file

You can auto format your code from Window -> Preferences -> Java -> Editor -> Save Actions by selecting appropriate options available here. You can also organize your imports from this window.

The other option that you can also is Ctrl + Shift + F to format the code.

Tip 8: Remove unused imports while saving file

Eclipse can remove unused imports using ctrl+shift+O.

Tip 9: Comment out block of code

Select the block of code and press Ctrl + / and it will comment out the block of code. Press Ctrl + / again and it will remove the comment’s slashes.

Tip 10: Check entire hierarchy of the class

When on a class and you want to check entire hierarchy, press F4. It will show Type hierarchy.

Tip 11: Delete entire line:

If you are on a line and press Ctrl + D it will delete the whole line.

Tip 12: Jump to any particular line

If you want to jump to any particular line, press Ctrl+L and then enter line number.

Tip 13: Move to line you last edited

Press Ctrl + Q  and it will take you to the line you last edited.

Tip 14: Rename the class

Press Alt + Shift + R and it will Rename the class.

Tip 15: Collapse all code blocks:

There is a hotkey that is mapped by default to Ctrl+Shift+NUM_KEYPAD_DIVIDE.

You can change it to something else via Window -> Preferences, search for “Keys”, then for “Collapse All”.

To open/expand all code blocks the shortcut is Ctrl+Shift+NUM_KEYPAD_MULTIPLY.

Alternatively you can also use below approach if you don’t have Num_KeyPad:

Right click on the +/- sign and click Folding -> collapse all or expand all.

Tip 16: Fix Keyboard Setup:

If accidently your keyboard setup messes up in Eclipse and it starts typing characters that you didn’t intent to type, you can get back to your keyboard layout by pressing “Alt + Shift” in eclipse,

Tip 17: Jump to Matching Bracket

To jump to the matching bracket for a loop in Eclipse IDE select opening or closing bracket and use Ctrl + Shift + P.

Tip 18: Insert main method in a class

To insert main method in a class, you can type ‘ma’ and press Ctrl+Space then select main method from displayed list.

Tip 19: Adding Code around a block of code

Select a block of code and press Alt+Shift+Z to see options that can enclose the selected block of code.

Tip 20: Create Getters & Setters for a class:

Click on Source → Generate Getter and Setter to open the wizard that will allow you to generate getter and setter methods.