java的反射

package jvm;

public class ReflectEntry {
    private String name;
    private  int age;

    public String getName() {
        return name;
    }

    public void setName(String name) {
        this.name = name;
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        this.age = age;
    }

    @Override
    public String toString() {
        return "ReflectEntry{" +
                "name='" + name + '\'' +
                ", age=" + age +
                '}';
    }
}

public class ReflectTest {
    public static void main(String[] args) throws Exception {
        Class<?> aClass = Class.forName("jvm.ReflectEntry");
        ReflectEntry re = (ReflectEntry) aClass.newInstance();
       // re.setAge(1);
        //re.setName("java");
        Method  declaredMethods = (Method) aClass.getDeclaredMethod("setName", String.class);
        declaredMethods.setAccessible(true);
        declaredMethods.getName();
        Object o = declaredMethods.invoke(re, "zyh");
        System.out.println(re.getName());
    }
}