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Questions and Answers
What is the main goal of the Java programming language?
What is the main goal of the Java programming language?
What is the current latest version of Java as of March 2024?
What is the current latest version of Java as of March 2024?
Who developed Java originally?
Who developed Java originally?
What is the default JVM for almost all Linux distributions?
What is the default JVM for almost all Linux distributions?
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What type of programming language is Java?
What type of programming language is Java?
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What was the original purpose for which Java was designed?
What was the original purpose for which Java was designed?
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What was the name of the language before it was finally renamed Java?
What was the name of the language before it was finally renamed Java?
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What was the main advantage of Java 1.0 promised by Sun Microsystems?
What was the main advantage of Java 1.0 promised by Sun Microsystems?
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What was the main reason for Sun Microsystems to approach ISO/IEC JTC 1 standards body in 1997?
What was the main reason for Sun Microsystems to approach ISO/IEC JTC 1 standards body in 1997?
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What was the result of the renaming of J2 versions by Sun Microsystems in 2006?
What was the result of the renaming of J2 versions by Sun Microsystems in 2006?
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Study Notes
Features of Java
- A high-level, class-based, object-oriented programming language designed to have few implementation dependencies.
- Allows programmers to write once, run anywhere (WORA) due to compiled Java code being able to run on all platforms that support Java without recompilation.
- Compiled to bytecode that can run on any Java virtual machine (JVM) regardless of the underlying computer architecture.
Comparison to Other Languages
- Syntax similar to C and C++, but with fewer low-level facilities.
- Provides dynamic capabilities like reflection and runtime code modification, typically not available in traditional compiled languages.
Popularity and History
- Gained popularity shortly after its release in 1995 and remained popular since then.
- Ranked as the third most popular programming language in 2022 according to GitHub.
- Gradual decline in use in recent years, with other languages using JVM gaining popularity.
Development and Licensing
- Originally developed by James Gosling at Sun Microsystems.
- Released in May 1995 as a core component of Sun's Java platform.
- Most Java technologies were relicensed under the GPL-2.0-only license as of May 2007.
- Oracle offers its own HotSpot Java Virtual Machine, but the official reference implementation is the OpenJDK JVM, which is free and open-source.
Java Versions
- As of March 2024, Java 22 is the latest version.
- Java 8, 11, 17, and 21 are previous LTS versions still officially supported.
Origins of Java
- Initiated by James Gosling, Mike Sheridan, and Patrick Naughton in June 1991.
- Originally designed for interactive television, but was too advanced for the digital cable television industry at the time.
- Initially called Oak, later renamed to Green, and finally to Java, named after Java coffee.
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Description
Learn about the characteristics of Java, including its platform independence and object-oriented design. Compare Java's syntax to other programming languages like C and C++.
