Python vs. Java
Ever wondered what happens behind the scenes when you run a Python script or a Java program? Let’s find out:
Python (CPython Runtime):
- Python source code (.py) is compiled into bytecode automatically in memory.
- Bytecode can also be cached in .pyc files, making re-runs faster by using the cached version.
- The Import System loads modules and dependencies.
- The Python Virtual Machine (PVM) interprets the bytecode line by line, making Python flexible but relatively slower.
Java (JVM Runtime):
- Java source code (.java) is compiled into .class bytecode using javac.
- The Class Loader loads bytecode into the Java Runtime Environment (JVM).
- Bytecode is verified and executed.
- JVM uses both an Interpreter and a JIT Compiler, frequently used code (hot paths) is converted into native machine code, making Java faster.
Ever wondered what happens behind the scenes when you run a Python script or a Java program? Let’s find out:
Python (CPython Runtime):
- Python source code (.py) is compiled into bytecode automatically in memory.
- Bytecode can also be cached in .pyc files, making re-runs faster by using the cached version.
- The Import System loads modules and dependencies.
- The Python Virtual Machine (PVM) interprets the bytecode line by line, making Python flexible but relatively slower.
Java (JVM Runtime):
- Java source code (.java) is compiled into .class bytecode using javac.
- The Class Loader loads bytecode into the Java Runtime Environment (JVM).
- Bytecode is verified and executed.
- JVM uses both an Interpreter and a JIT Compiler, frequently used code (hot paths) is converted into native machine code, making Java faster.
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My personal top pics for my most favourite VS Code extensions 😁
Special shoutout to DevContainers - it is such a cool protocol, which let's you to develop inside of a container. Like, your IDE is running inside a container (not exact though).
Say I am working on a C project, and want some specific tools and packages installed, I create a dev container and it becomes portable. I can now run it anywhere, and it's the same environment!
🤩 The best part is I don't have to install anything on my actual OS and manage conflicting dependencies.
👉 Another cool one you may not know is Mermaid, the easiest way to create diagrams using just markdown format
Special shoutout to DevContainers - it is such a cool protocol, which let's you to develop inside of a container. Like, your IDE is running inside a container (not exact though).
Say I am working on a C project, and want some specific tools and packages installed, I create a dev container and it becomes portable. I can now run it anywhere, and it's the same environment!
🤩 The best part is I don't have to install anything on my actual OS and manage conflicting dependencies.
👉 Another cool one you may not know is Mermaid, the easiest way to create diagrams using just markdown format
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These underrated VS Code shortcuts & tips are about to take you one step closer to 10x dev mode.
Developers lose hours every week just navigating their editors inefficiently. Whether you’re debugging, refactoring, or exploring codebases, small improvements compound fast.
Master these if you want to move faster in VS Code:
1. Must-know Shortcuts
▪️Cmd/Ctrl + P: Quick file navigation
▪️Cmd/Ctrl + Shift + O: Jump to symbol in file
▪️Cmd/Ctrl + Shift + L: Select all instances of selected word
▪️Cmd/Ctrl + D: Add next occurrence to selection
▪️Cmd/Ctrl + B: Toggle sidebar
▪️Cmd/Ctrl + /: Toggle line comment
2. Editor Tricks
▪️Cmd/Ctrl + Shift + \\: Jump to matching bracket
▪️Cmd/Ctrl + Shift + →: Expand selection smartly
▪️Cmd/Ctrl + K Cmd/Ctrl + S: Open all shortcut mappings
3. Multi-Cursor Power
▪️Option/Alt + Click: Add cursors manually
▪️Cmd/Ctrl + Alt + Down/Up: Add cursors line by line
▪️Use for bulk edits, HTML tag renaming, and...
Developers lose hours every week just navigating their editors inefficiently. Whether you’re debugging, refactoring, or exploring codebases, small improvements compound fast.
Master these if you want to move faster in VS Code:
1. Must-know Shortcuts
▪️Cmd/Ctrl + P: Quick file navigation
▪️Cmd/Ctrl + Shift + O: Jump to symbol in file
▪️Cmd/Ctrl + Shift + L: Select all instances of selected word
▪️Cmd/Ctrl + D: Add next occurrence to selection
▪️Cmd/Ctrl + B: Toggle sidebar
▪️Cmd/Ctrl + /: Toggle line comment
2. Editor Tricks
▪️Cmd/Ctrl + Shift + \\: Jump to matching bracket
▪️Cmd/Ctrl + Shift + →: Expand selection smartly
▪️Cmd/Ctrl + K Cmd/Ctrl + S: Open all shortcut mappings
3. Multi-Cursor Power
▪️Option/Alt + Click: Add cursors manually
▪️Cmd/Ctrl + Alt + Down/Up: Add cursors line by line
▪️Use for bulk edits, HTML tag renaming, and...
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