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In software development, the programming language Java was historically considered slower than the fastest third-generation typed languages such as C and C++.[1] In contrast to those languages, Java compiles by default to a Java Virtual Machine (JVM) with operations distinct from those of the actual computer hardware. Early JVM implementations were interpreters; they simulated the virtual operations one-by-one rather than translating them into machine code for direct hardware execution.
Since the late 1990s, the execution speed of Java programs improved significantly via introduction of just-in-time compilation (JIT) (in 1997 for Java 1.1),[2][3][4] the addition of language features supporting better code analysis, and optimizations in the JVM (such as HotSpot becoming the default for Sun's JVM in 2000). Sophisticated garbage collection strategies were also an area of improvement. Hardware execution of Java bytecode, such as that offered by ARM's Jazelle, was explored but not deployed.
The performance of a Java bytecode compiled Java program depends on how optimally its given tasks are managed by the host Java virtual machine (JVM), and how well the JVM exploits the features of the computer hardware and operating system (OS) in doing so. Thus, any Java performance test or comparison has to always report the version, vendor, OS and hardware architecture of the used JVM. In a similar manner, the performance of the equivalent natively compiled program will depend on the quality of its generated machine code, so the test or comparison also has to report the name, version and vendor of the used compiler, and its activated compiler optimization directives.
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execution of Java bytecode, such as that offered by ARM's Jazelle, was explored but not deployed. The performance of a Java bytecode compiled Java program...
Since J2SE 1.4, the evolution of the Java language has been governed by the Java Community Process (JCP), which uses Java Specification Requests (JSRs) to...
article correctly. Java is one of the Greater Sunda Islands in Indonesia. It is bordered by the Indian Ocean to the south and the Java Sea to the north...
A Java virtual machine (JVM) is a virtual machine that enables a computer to run Java programs as well as programs written in other languages that are...
the primary Java VM implementation, HotSpot. Software written in Java, especially its early versions, has been criticized for its performance compared to...
software for working with Java applications. Examples of included software are the Java virtual machine, a compiler, performance monitoring tools, a debugger...
using a Just-In-Time (JIT) compiler, enhancing the performance of Java applications. The design of Java bytecode aims for a high degree of cross-platform...
Central Java (Indonesian: Jawa Tengah, Javanese: ꦗꦮꦶꦩꦢꦾ, romanized: Jawi Madya) is a province of Indonesia, located in the middle of the island of Java. Its...
during execution as regular Java programs to improve performance. The JVM was initially designed to support only the language Java. However, over time, ever...
West Java (Indonesian: Jawa Barat, Sundanese: ᮏᮝ ᮊᮥᮜᮧᮔ᮪, romanized: Jawa Kulon) is an Indonesian province on the western part of the island of Java, with...
browsers of its time. More critically, HotJava suffered from the inherent performance limitations of Java virtual machine implementations of the day...
JavaScript (/ˈdʒɑːvəskrɪpt/), often abbreviated as JS, is a programming language and core technology of the Web, alongside HTML and CSS. 99% of websites...
Java applets are small applications written in the Java programming language, or another programming language that compiles to Java bytecode, and delivered...
and Java. Performance Analyzer is available as part of Oracle Developer Studio. It has visualization capabilities, can read out hardware performance counters...
fastest Java runtime performance with a small memory footprint and competitive performance on code not written in the Java language. The picoJava specification...
Exhibition in Java. between 1910 and 1930 Sundanese Gamelan Degung Performance from West Java, Indonesia, on 6 November 2007 Outside the main core on Java and Bali...
sending power to the rear wheels. Rolls-Royce's projected performance figures for the original Java coupe concept with this engine were 0-60 mph (97 km/h)...
puppetry originally found in the cultures of Java and Bali in Indonesia. In a wayang kulit performance, the puppet figures are rear-projected on a taut...
Indonesian island of Java. Wayang refers to the entire dramatic show. Sometimes the leather puppet itself is referred to as wayang. Performances of wayang puppet...
LaWanda Page and Don Rickles. Lady Java cited Lena Horne, Mae West, and Josephine Baker as inspirations for her performances, which involved dancing, impersonations...
sound capabilities. Including performance- and platform-sensitive API implementations in the standard library allows all Java applications to access this...
Java OpenGL (JOGL) is a wrapper library that allows OpenGL to be used in the Java programming language. It was originally developed by Kenneth Bradley...
Java Card is a software technology that allows Java-based applications (applets) to be run securely on smart cards and more generally on similar secure...
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