Rename year directories to allow natural ordering

year2/semester1/logseq-stuff/pages/Introduction to Object-Oriented Programming.md

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+- #[[CT2106 - Object-Oriented Programming]]
+- No previous topic
+- **Next Topic:** [[Introduction to Java]]
+- **Relevant Slides:** ![Lecture00.pdf](../assets/Lecture00_1662850272554_0.pdf)
+-
+- ## Definitions
+	- What is a **class**? #card
+	  card-last-interval:: 23.43
+	  card-repeats:: 4
+	  card-ease-factor:: 2.42
+	  card-next-schedule:: 2022-12-02T22:44:35.056Z
+	  card-last-reviewed:: 2022-11-09T12:44:35.056Z
+	  card-last-score:: 3
+		- A **class** is a type of *blueprint* or *template* from which you make objects.
+	- What is an **object**? #card
+	  card-last-interval:: 27.13
+	  card-repeats:: 4
+	  card-ease-factor:: 2.56
+	  card-next-schedule:: 2022-12-11T23:00:56.373Z
+	  card-last-reviewed:: 2022-11-14T20:00:56.374Z
+	  card-last-score:: 5
+		- A (Java) **object** is a self-contained component which consists of *methods* and *properties*.
+		- It is a piece of code that has a **state** and has **behaviour**.
+		- Often, they represent a "real-life" object.
+		- An object is created by *instantiating* a **class**.
+	- What is **bytecode**? #card
+	  card-last-interval:: 29.26
+	  card-repeats:: 4
+	  card-ease-factor:: 2.66
+	  card-next-schedule:: 2022-12-13T22:39:29.786Z
+	  card-last-reviewed:: 2022-11-14T16:39:29.787Z
+	  card-last-score:: 5
+		- Unlike other high-level programming languages, Java code is **not** compiled into machine-specific code that can be executed by a microprocessor.
+		- Instead, Java programs are compiled into **bytecode**. The bytecode is input into a **Java Virtual Machine (JVM)**, which interprets & executes the code. The JVM is usually a program itself.
+		- Bytecode is **platform independent**.
+		- The JVM is specific for each platform, but the bytecode for the program remains the same across different platforms.
+		- The main trade-off is the effect it has on the execution speed.
+	-
+-
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