如何在运行时从java程序编译和运行scala代码？

import java.io.IOException;

public class RunScalaCode {
    public static void main(String[] args) {
        try {
            // 编译Scala代码
            ProcessBuilder compileProcess = new ProcessBuilder("scalac", "Hello.scala");
            Process compile = compileProcess.start();
            compile.waitFor();

            // 运行Scala代码
            ProcessBuilder runProcess = new ProcessBuilder("java", "scala.tools.nsc.MainGenericRunner", "Hello");
            Process run = runProcess.start();
            run.waitFor();
        } catch (IOException | InterruptedException e) {
            e.printStackTrace();
        }
    }
}