![]() 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), 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). Performance was a matter of concern because much business software has been written in Java after the language quickly became popular in the late 1990s and early 2000s. The main reason being a different language design, where after compiling, Java programs run on a Java virtual machine (JVM) rather than directly on the computer's processor as native code, as do C and C++ programs. ![]() ![]() In software development, the programming language Java was historically considered slower than the fastest 3rd generation typed languages such as C and C++. For criticisms about Java performance, and more generally about the Java language, see Criticism of Java. This article is a general presentation of the Java platform performance.
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