Demystifying the Java Virtual Machine: How Java Works

2023/08/12

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The article provides a comprehensive explanation of how Java works and the inner workings of the Java Virtual Machine (JVM). It highlights the importance of understanding the JVM for developers and how it serves as an intermediary between code and computer hardware. The JVM executes bytecode, which is an intermediate representation of a Java program. The article also explains the compilation process, where Java code is compiled into bytecode using the 'javac' command. It discusses the execution process, starting with the JVM loading the .class file into memory via classloaders. The article further delves into the three types of classloaders in the JVM: Bootstrap Classloader, Extensions Classloader, and System Classloader. Understanding these concepts is crucial for developers working with Java as it provides insights into the inner workings of the language and helps optimize code performance.