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- #CT2106 - Object-Oriented Programming
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Definitions
- What is a class? #card
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- A class is a type of blueprint or template from which you make objects.
- What is an object? #card
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- 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
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- 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.
- What is a class? #card
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card-repeats:: 4
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card-next-schedule:: 2022-12-02T22:44:35.056Z
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card-last-score:: 3
