Catalog / NetBeans IDE Cheatsheet
NetBeans IDE Cheatsheet
A comprehensive cheat sheet for the NetBeans IDE, covering essential features, shortcuts, debugging, and project management tips for efficient development.
General Usage & Shortcuts
Basic Navigation
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Ctrl + Shift + N |
New Project |
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Ctrl + N |
New File |
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Ctrl + O |
Open File |
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Ctrl + Shift + O |
Open Project |
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Ctrl + S |
Save |
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Ctrl + Shift + S |
Save All |
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Ctrl + W |
Close Current Tab |
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Ctrl + Shift + W |
Close All Tabs |
Editing Shortcuts
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Ctrl + X |
Cut Line |
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Ctrl + C |
Copy Line |
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Ctrl + V |
Paste |
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Ctrl + Z |
Undo |
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Ctrl + Y |
Redo |
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Ctrl + D |
Duplicate Line |
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Alt + Shift + Up/Down |
Move Line Up/Down |
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Ctrl + Shift + Up/Down |
Select Multiple Lines |
Code Completion & Generation
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Ctrl + Space |
Code Completion |
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Alt + Insert |
Generate Code (Getters, Setters, Constructors, etc.) |
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Ctrl + I |
Fix Imports |
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Ctrl + Shift + I |
Reformat Code |
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Ctrl + / |
Comment/Uncomment Line |
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Alt + Shift + F |
Format Code |
Debugging
Debugging Basics
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Ctrl + F5 |
Start Debugging |
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Shift + F5 |
Continue Debugging |
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Ctrl + Shift + F5 |
Stop Debugging |
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F7 |
Step Into |
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F8 |
Step Over |
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Ctrl + F7 |
Step Out |
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Ctrl + Shift + B |
Toggle Breakpoint |
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Ctrl + F9 |
Evaluate Expression |
Breakpoints & Watches
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Set breakpoints by clicking in the left margin of the editor next to the line number. Use conditions on breakpoints to pause execution only when certain conditions are met. |
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Add variables to the ‘Watches’ window (Window > Debugging > Watches) to monitor their values during debugging. |
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Use the ‘Call Stack’ window (Window > Debugging > Call Stack) to see the sequence of method calls that led to the current point in the execution. |
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Use conditional breakpoints to stop the execution only when a certain condition is met. Right-click a breakpoint and select ‘Properties’ to set a condition. |
Debugging Windows
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Variables Window: Displays the current values of variables in the current scope. |
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Watches Window: Allows you to monitor specific expressions or variables. |
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Call Stack Window: Shows the sequence of method calls. |
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Threads Window: Manages and monitors threads in a multithreaded application. |
Project Management
Project Structure
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NetBeans organizes projects into logical units, making it easier to manage large codebases. Key directories include |
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Use the ‘Projects’ window (Ctrl + 1) to view and manage project files and dependencies. |
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Right-click on a project in the ‘Projects’ window to access options like ‘Clean and Build’, ‘Run’, ‘Debug’, and ‘Properties’. |
Build & Run
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Ctrl + Shift + B |
Clean and Build Project |
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F6 |
Run Project |
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Shift + F6 |
Run File |
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Ctrl + F6 |
Debug Project |
Version Control
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NetBeans provides built-in support for Git, Mercurial, and Subversion. Use the ‘Team’ menu to access version control features. |
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Right-click on a project or file to commit, update, push, and perform other version control operations. |
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Use the ‘Diff’ window to compare changes between different versions of a file. |
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Resolve conflicts by using the merge tools available in NetBeans. |
Advanced Features
Refactoring
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NetBeans offers powerful refactoring tools to improve code quality and maintainability. Access refactoring options by right-clicking on a code element (e.g., variable, method, class) and selecting ‘Refactor’. |
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Rename: Safely rename variables, methods, and classes throughout your project. |
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Move: Move classes to different packages. |
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Extract Method: Create a new method from a selected block of code. |
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Inline: Replace a method call with the method’s body. |
Code Templates
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NetBeans allows you to define and use code templates (also known as live templates) to quickly insert commonly used code snippets. Access code templates via ‘Tools > Options > Editor > Code Templates’. |
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Type the abbreviation for a template and press Tab to expand it. For example, type |
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Customize existing templates or create new ones to suit your coding style. |
Plugins
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Extend NetBeans functionality by installing plugins. Access the Plugin Manager via ‘Tools > Plugins’. |
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Search for plugins in the NetBeans Plugin Portal or install them from local files. |
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Popular plugins include those for additional language support, version control integration, and code analysis tools. |