java反射如何获取并修改list子对象

[gzd03]

Techer类：

class Techer {
	private String name;
	private String glass;
	private List<Student> stus;
}

Student类：

class Student {
	private String stuNmae;
	private String stuAge;
}

数据结构：

		Student stu1 = new Student();
		stu1.setStuNmae("zhangsan");
		
		Student stu2 = new Student();
		stu2.setStuNmae("lisi");
		
		Techer tec = new Techer();
		tec.setGlass("B");
		tec.setName("zhang lao shi");
		
		List<Student> stus = new  ArrayList<Student>();
		stus.add(stu1);
		stus.add(stu2);
		tec.setStus(stus);

请问，如何通过java的反射机制，修改tec对象中的suts，分别为stu1和stu2的sutAge赋值

接口要求如下：

public Techer setStuInfo(Techer tec, String[] ages);

[gzd03]

先判断类型是否是list，然后用下面的代码就可以获取到list集合

Method m = (Method) obj.getClass().getMethod("get" + getMethodName(field.getName()));  
List list = (List) m.invoke(obj);

private static String getMethodName(String fildeName) throws Exception{  
		byte[] items = fildeName.getBytes();  
		items[0] = (byte) ((char) items[0] - 'a' + 'A');  
		return new String(items);  
	}

[邹邹wl]

		 Method method = tec.getClass().getMethod("setStus", List.class);
		 method.invoke(tec, stus);