反射之基本方法，这块代码请从下往上看，为了调试，本人都注释了，自己搞一下~）

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

        /**
         * 反射机制的动态代理
         */
        //这边再说

        /**
         * 通过反射机制操作某个类的属性
         */
//        Class class1 = Class.forName("ModelC");
//        Object obj = class1.newInstance();
//        // 可以直接对 private 的属性赋值
//        Field field = class1.getDeclaredField("name");
//         //设置些属性是可以访问的
//        field.setAccessible(true);
//        field.set(obj, "老王");
//        System.out.println(field.get(obj));

        /**
         * 通过反射机制调用某个类的方法
         */
//        Class class1 = Class.forName("ModelC");
//        Method method3  = class1.getMethod("say");
//        method3.invoke(class1.newInstance());
//
//        Method method  = class1.getMethod("daYin",  String.class);
//        method.invoke(class1.newInstance(), "hahahaha");
//
//        Method method2  = class1.getMethod("jiafa",  int.class,  int.class);
//        method2.invoke(class1.newInstance(), 1,2);



        /**
         * 获得类的全部方法
         */
//        Class class1 = Class.forName("ModelC");
//        Method[] methods = class1.getMethods();
//        for(int i = 0; i returnType = methods[i].getReturnType();
//            Class para[] = methods[i].getParameterTypes();
//            int temp = methods[i].getModifiers();
//            System.out.print(Modifier.toString(temp) + " ");
//            System.out.print(returnType.getName() + "  ");
//            System.out.print(methods[i].getName() + " ");
//            System.out.print("(");
//            for (int j = 0; j < para.length; ++j) {
//                System.out.print(para[j].getName() + " " + "arg" + j);
//                if (j < para.length - 1) {
//                    System.out.print(",");
//                }
//            }
//            Class exce[] = methods[i].getExceptionTypes();
//            if (exce.length > 0) {
//                System.out.print(") throws ");
//                for (int k = 0; k < exce.length; ++k) {
//                    System.out.print(exce[k].getName() + " ");
//                    if (k < exce.length - 1) {
//                        System.out.print(",");
//                    }
//                }
//            } else {
//                System.out.print(")");
//            }
//            System.out.println();
//        }



        /**
         * 获得类的全部属性
         */
//        Class class1 = Class.forName("ModelC");
//
//        Field[] fields = class1.getDeclaredFields();
//        for(int i=0;i type = fields[i].getType();
//            System.out.println(priv+" "+type.getName()+" "+fields[i].getName());
//        }

        /**
         * 获得父类，或者接口的属性
         */
//        Class class1 = Class.forName("ModelC");
//        Field[] fields = class1.getFields();
//        for(int i=0;i type = fields[i].getType();
//            System.out.println(priv+" "+type.getName()+" "+fields[i].getName());
//        }
        /**
         * 获得类构造方法,通过构造方法建对象
         */
//        Class class1 = Class.forName("ModelC");
//        System.out.println(class1.getName());
//        ModelC modelC = (ModelC)class1.newInstance();
//        modelC.setName("fw");
//        modelC.setAge(13);
//        System.out.println(modelC.toString());
//
//        Constructor constructors[] = class1.getConstructors();
//        ModelC modelC2 = (ModelC)constructors[1].newInstance("fw2");
//        System.out.println("modelC2:"+modelC2.toString());
//        for(int i=0; i clazzs[] = constructors[i].getParameterTypes();
//            for (int j = 0; j < clazzs.length; j++) {
//                if (j == clazzs.length - 1)
//                    System.out.print(clazzs[j].getName());
//                else
//                    System.out.print(clazzs[j].getName() + ",");
//            }
//            System.out.println(")");
//        }



        /**
         * 获得接口
         */
//        Class class1 = Class.forName("Adapter.PlayGanmes");
//        Class intf[] = class1.getInterfaces();
//        for(int i = 0 ; i  class1 = Class.forName("Bridge.Black");
//        Class class2 = class1.getSuperclass();
//        System.out.print(class2.getName());
    }

引用到的两个类：

public class ModelC extends Father{
    private String name;
    private int age;

    public ModelC(){
        super();
    }

    public  ModelC(String name){
        this.name = name;
    }

    public  ModelC(String name,int age){
        this.name = name;
        this.age = age;
    }

    public void say(){
        System.out.println("hello");
    }

    public void daYin(String oo){
        System.out.println(oo);
    }

    public void jiafa(int a1,int a2){
        System.out.println(a1+a2);
    }

    private void method1(){
        System.out.println(this.name+","+this.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;
    }

    public String toString(){
        return "[name:"+this.name+", age:"+age+"]";
    }
}

public class Father {
    public String sex;

    public String getSex() {
        return sex;
    }

    public void setSex(String sex) {
        this.sex = sex;
    }
}