Python和java 如何相互调用

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import org.python.util.PythonInterpreter;

public class java2python {

    public static void main(String[] args) {
        PythonInterpreter interpreter = new PythonInterpreter();
        interpreter.exec("# coding=utf-8");
        interpreter.exec("days=('mod','Tue','Wed','Thu','Fri','Sat','Sun'); ");
        interpreter.exec("print days[1];");
    }
}

  public static void main(String[] args) {
        PythonInterpreter interpreter = new PythonInterpreter();
        interpreter.execfile("C:\\Users\\wjf\\ideaProjects\\javaTestPython\\src\\my_utils.py");
        PyFunction func = interpreter.get("adder", PyFunction.class);

        int a = 2010, b = 8;
        PyObject pyobj = func.__call__(new PyInteger(a), new PyInteger(b));
        System.out.println("anwser = " + pyobj.toString());
    }

    public static void main(String[] args) {
        PythonInterpreter interpreter = new PythonInterpreter();
        interpreter.execfile("C:\\Users\\wjf\\IdeaProjects\\javaTestPython\\src\\input.py");
    }