The main function is that with decompilation tools, we can understand the bytecode generated by the Java compiler. With decompilation tools, we can do many things.
Decompilation in the Java language generally refers to converting a class file into a java file. Is to translate the language that the machine understands into a language that the programmer can understand.
Convert source file to class files java compiler online code#
The process of decompiling is just the opposite of compiling, that is, restoring the compiled programming language to an uncompiled state, that is, finding the source code of the programming language. class that can run in the Java virtual machine. The tool can compile source files with the extension. Javac is a Java language compiler included in the JDK. In fact, the class file is still not a language that the machine can recognize, because the machine can only recognize the machine language, and the JVM needs to convert this class file type bytecode into a machine language that the machine can recognize. Usually we think of this process as the compilation of the Java language. This class file is a file recognized by the JVM. The compiler responsible for compiling in Java is a command: javacĪfter we write a HelloWorld.java file, we can use the javac HelloWorld.java command to generate a HelloWorld.class file. Different languages have their own compilers. Now we know what a compiler is and what a compiler is. The tool responsible for this process is called a compiler The process of translating source code programs written in high-level computer languages that are easy to write, read, and maintain into low-level machine language programs that can be interpreted and run by computers is compilation. Simple understanding: low-level languages are languages recognized by computers, and high-level languages are languages recognized by programmers.So how do you switch from a high-level language to a low-level language? This process is actually compiling.
There are two languages mentioned above, a low-level language and a high-level language. Programs are written in statements, which are abstract representations of computer instructions. Machine language and assembly language are low-level languages, and programs are written directly with computer instructions.C, C ++, Java, and Python are high-level languages. Programming languages are divided into low-level languages and high-level languages. Before introducing compilation and decompilation, let's briefly introduce the Programming Language.
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