如何从我的程序中的Java文件创建Java类文件？

Question

Suppose there is a Java file that exists in an external folder. Can I write a Java program which will generate a .class file of that Java file and place the .class file in the same external folder?

Answer 1

最简单的方法（对我来说）是包含tools.jar并调用com.sun.tools.javac.Main.compile( ）函数。

Answer 2

yes , you can do it using java compiler

JavaCompiler compiler = ToolProvider.getSystemJavaCompiler();
StandardJavaFileManager fileManager = compiler.getStandardFileManager(null,null,null); 

Check this for further details

Answer 3

It's in here: java.lang.Compiler . This class has the method compileClass(Class class) and compileClasses(String names)