package aReflection; import java.beans.BeanInfo; import java.beans.Introspector; import java.beans.PropertyDescriptor; import java.lang.reflect.Method; import java.lang.reflect.Modifier; import java.util.Arrays; public class Main2 { public static void main(String[] args) throws Exception { Student s = new Student(); Class cls = s.getClass(); Method m = cls.getMethod("setAddress", String.class); printMethodInfo(m); m.invoke(s, "shanghai"); System.out.println(s.hello()); BeanInfo bi = Introspector.getBeanInfo(cls); for (PropertyDescriptor pb : bi.getPropertyDescriptors()){ System.out.println(pb.getName()); System.out.println(pb.getReadMethod()); System.out.println(pb.getWriteMethod()); } } private static void printMethodInfo(Method m) { System.out.println(m); System.out.println("method name: " + m.getName()); System.out.println("return type: " + m.getReturnType()); System.out.println("parameters: " + Arrays.toString(m.getParameterTypes())); System.out.println("method modifier? : " + m.getModifiers()); } }