正则表达式

package fanshe;

import java.lang.reflect.Constructor;
import java.lang.reflect.Field;
import java.lang.reflect.InvocationTargetException;
import java.lang.reflect.Method;

public class testDemo {


    public static void main(String[] args) throws Exception {
        method_9();
    }
    private static void method_9() throws Exception, Exception {
        // TODO Auto-generated method stub
        Class clazz=Class.forName("fanshe.person");
        Method method=clazz.getMethod("show",String.class);
    
        Object obj=clazz.newInstance();
        method.invoke(obj,"show传值");
    }
    private static void method_8() throws Exception {
        Class clazz=Class.forName("fanshe.person");
        Method method=clazz.getMethod("show", null);
        //Object obj=clazz.newInstance();
        Constructor constructor=clazz.getConstructor(String.class,int.class);
        Object obj=constructor.newInstance("李亮亮",33);
        method.invoke(obj,null);
        
    }
    //调用指定方法
    private static void method_7() throws Exception {
        Class clazz=Class.forName("fanshe.person");
        Method method=clazz.getMethod("show", null);
        Object obj=clazz.newInstance();
        method.invoke(obj, null);
        
    }
    //获取指定Class中的公共函数
    private static void method_6() throws Exception {
        Class clazz=Class.forName("fanshe.person");
        Method[] methods=clazz.getMethods();//获取的共有方法
        methods=clazz.getDeclaredMethods();//只获得本类中的所有方法
        for(Method method:methods)
        {
            System.out.println(method);
        }
    }
    //设置字段
    private static void method_5() throws Exception {
        Class clazz=Class.forName("fanshe.person");
        Field field=clazz.getDeclaredField("age");
        field.setAccessible(true);
        Object obj=clazz.newInstance();
        field.set(obj, 33);
        Object o=field.get(obj);
            System.out.println(o);    
    }
    //指定参数
    private static void method_4() throws Exception {
        String clazz="fanshe.person";
        Class c1=Class.forName(clazz);
        Constructor con=c1.getConstructor(String.class,int.class);
        person obj=(person) con.newInstance("小强",33);
        
        System.out.println(obj);    
        
    }
    //反射创建对象
    private static void method_3() throws ClassNotFoundException, InstantiationException, IllegalAccessException, NoSuchMethodException, SecurityException, IllegalArgumentException, InvocationTargetException {
        String clazz="fanshe.person";
        Class c1=Class.forName(clazz);
        c1.newInstance();
/*        Constructor con=c1.getConstructor();
        person obj=(person) con.newInstance();
        
        System.out.println(obj);*/
    }

    private static void method_2() {
        Class<person> c1=person.class;
        Class<person> c2=person.class;
        System.out.println(c1==c2);
    }

    public static void method_1() {
        person p=new person();
        Class c1=p.getClass();
        person p1=new person();
        Class c2=p1.getClass();
        System.out.println(c1==c2);
    }

}