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What does Java do?

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Quick Answer

Java is an object-oriented, cross-platform programming language used by many applications and websites. In order to execute Java files, the Java Runtime Environment must be installed on the device being used. This software is available on nearly every modern computer device, from tablets to Blu-ray players, which makes Java programs extremely portable.

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The JRE is a software package designed to interpret and run Java files. The package consists of the Java Virtual Machine, core classes and supporting libraries. The JVM prevents code from operating outside of certain restrictions, which helps to make Java safe from malicious code and potential computer crashes. Because of this security, Java is frequently used on the web, where viruses are a high concern.

Java is a high-level programming language, which means it is easy to learn and a good programming language for beginners. Learning Java requires little knowledge of the intricacies of computers. Instead, many of the required complexities, such as memory management, are automatically handled by the programming language.

The Java programming language was initially developed in 1991 by a team of software engineers at Sun Microsystems. The team was led by James Gosling. The first web browser revealed to incorporate Java technology was Netscape Navigator in 1995.

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