无法使用反射API访问java中的私有方法

当我尝试使用反射访问私有方法时，出现以下错误

这是示例代码

public class Bank {

    public final static String name="Nanda Bank";

    public int value;

    public double getRatOfInterest(){

        return (double) 10.5;
    }

    private void getDetails(){

        System.out.println("User Password 123");
    }
}

public class JavaReflectionPrivateExample {

public static void main(String[] args) throws NoSuchMethodException, SecurityException, IllegalAccessException, IllegalArgumentException, InvocationTargetException, InstantiationException {

// getting private method. unable to access private method using reflection api

Class<Bank> c = Bank.class;
Method privateMethod = c.getMethod("getDetails");

privateMethod.setAccessible(true);
privateMethod.invoke(c.newInstance());

    }
}

更改：

Method privateMethod = c.getMethod("getDetails");

致：

更改：

Method privateMethod = c.getMethod("getDetails");

致：

Method privateMethod = c.getDeclaredMethod("getDetails");