java反射：getMethods函数不显示方法

Question

import java.lang.reflect.Method;
import java.util.Arrays;

public class Test
{
     public static void main(String s[]) throws ClassNotFoundException
     {
        Class cls = Class.forName("Test");
        System.out.println("Class is "+cls);
        Method[] mtds = cls.getMethods();
        System.out.println("Methods are "+Arrays.deepToString(mtds));  // not having all methods
    }

    void reflectionTestMethod()
    {
        System.out.println("test");
    }
}

类是类测试

方法有[html" target="_blank">public static void test.main(java.lang.String[])抛出java.lang.ClassNotFoundException,public final native void java.lang.Object.Wait（long）抛出java.lang.InterruptedException,public final void java.lang.Object.Wait（long,int）抛出java.lang.InterruptedException,public final void java.lang.Object.Equals（java.lang.Object.ToString(),public

为什么reflectionTestMethod（）在输出中不可用？

Answer 1

getMethods()返回公共方法（如其在Javadoc中所述）

请尝试getDeclaredMethods()或将方法公开。

顺便说一句，您可以执行以下操作：

Class cls = Test.class;
System.out.println("Class is " + cls);
for(Method method : cls.getDeclaredMethods())
    System.out.println(method);