利用JAVA反射技术执行一个类的方法

public class Test {

public Test() {

}

public static void main(String[] args) throws IllegalArgumentException,
SecurityException, IllegalAccessException,
InvocationTargetException, NoSuchMethodException {
Bean bean = new Bean();
System.out.println(bean);
Bean.class.getMethod("setName", String.class).invoke(bean, "Jerry");
Bean.class.getMethod("setAge", int.class).invoke(bean, 25);
System.out.println("After reflection....\n" + bean);
}

}

class Bean {
private String name;
private int age;

public Bean() {
}

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

public String getName() {
return name;
}

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

public int getAge() {