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Questions and Answers
What was the initial name of the Java language?
What was the initial name of the Java language?
When was the first public implementation of Java released?
When was the first public implementation of Java released?
What does WORA stand for in the context of Java?
What does WORA stand for in the context of Java?
When did Sun release much of Java as free and open source software?
When did Sun release much of Java as free and open source software?
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What are the minimum hardware requirements for a computer to perform the examples discussed in the tutorial?
What are the minimum hardware requirements for a computer to perform the examples discussed in the tutorial?
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Which operating systems are listed as compatible for running Java programs?
Which operating systems are listed as compatible for running Java programs?
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What was the original name of the Java language?
What was the original name of the Java language?
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In which year was the first public implementation of Java released?
In which year was the first public implementation of Java released?
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What is the significance of the acronym WORA in the context of Java?
What is the significance of the acronym WORA in the context of Java?
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Which software was required for writing Java programs according to the text?
Which software was required for writing Java programs according to the text?
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What did Sun release as free and open source software in 2006?
What did Sun release as free and open source software in 2006?
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Which feature allows us to perform a single action in different ways in Java?
Which feature allows us to perform a single action in different ways in Java?
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What does the term 'poly' in polymorphism refer to?
What does the term 'poly' in polymorphism refer to?
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In the real-life illustration of polymorphism in Java, what does a person possess in different situations?
In the real-life illustration of polymorphism in Java, what does a person possess in different situations?
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What is the mechanism in Java by which one class is allowed to inherit the features of another class?
What is the mechanism in Java by which one class is allowed to inherit the features of another class?
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What is the primary benefit of code reusability in Java through inheritance?
What is the primary benefit of code reusability in Java through inheritance?
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What can a class that inherits from another class do with the methods and fields of that class?
What can a class that inherits from another class do with the methods and fields of that class?
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What additional capability does a class have when it inherits from another class in Java?
What additional capability does a class have when it inherits from another class in Java?
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Study Notes
Java Language History
- Initially named Oak before being renamed to Java.
- The first public implementation of Java was released in 1995.
Key Acronyms
- WORA stands for Write Once, Run Anywhere, highlighting Java's capability to run on any device that supports the Java Virtual Machine (JVM).
Open Source Release
- Sun Microsystems released much of Java as free and open source software in 2006.
Hardware and Software Requirements
- Minimum hardware requirements include a CPU, RAM, and sufficient storage depending on the Java version and specific applications.
- Compatible operating systems for running Java programs include Windows, Linux, and macOS.
Programming Features
- A software development environment is required for writing Java programs.
- Polymorphism allows a single action to be performed in different ways within Java.
- The prefix 'poly' in polymorphism means many, referring to the ability of a method to take on many forms.
Real-Life Illustration of Polymorphism
- In everyday situations, a person possesses different roles or identities, such as being a parent, teacher, or friend, showcasing behavioral characteristics.
Inheritance in Java
- The mechanism for one class to inherit features from another is known as inheritance.
- Code reusability is a primary benefit of inheritance, allowing derived classes to utilize existing code.
Class Capabilities
- A class that inherits from another can access its methods and fields.
- In addition to accessing inherited methods and fields, a subclass can also override methods to provide specific functionality.
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Description
Test your knowledge of the origins and development of the Java programming language, from its inception as 'Oak' to its official release as Java 1.0. Learn about the key milestones and features that have shaped Java into one of the most popular programming languages in the world.
