集合list里存储list，要遍历最底层list的对象元素的遍历方法

package com.wtd;

import java.util.ArrayList;
import java.util.HashSet;
import java.util.Iterator;
import java.util.List;
import java.util.Set;

public class L16 {

    /**
     * @desc 需要将list传到另个方法里怎么用list遍历userList和dpList？
     * @param args
     * @throws Exception 
     */
    public static void main(String[] args) throws Exception {
        // TODO Auto-generated method stub
        List list = new ArrayList<ArrayList>();
        User user= new User();
        user.setAge(18);
        user.setName("andi");
        Department department= new Department();
        department.setDepartId(7);
        department.setDepartName("Program");
        List<User> userList = new ArrayList();//用于接收从数据库查出的数据
        userList.add(user);
        List<Department> dpList = new ArrayList();//用于接收从数据库查出的数据
        dpList.add(department);
        list.add(userList);
        list.add(dpList);
        getElement(list);
    }
    public static void getElement(List list) throws Exception{
        for (Iterator iterator = list.iterator(); iterator.hasNext();) {
            ArrayList listSmall = (ArrayList) iterator.next();
            for (Iterator iterator2 = listSmall.iterator(); iterator2.hasNext();) {
                Object objectSmall= iterator2.next();
                String className = objectSmall.getClass().getName();
                if ("com.wtd.User".equalsIgnoreCase(className)) {//com.wtd.User
                    System.out.println("className.user="+className);
                    User userSmall= (User) objectSmall; 
                    System.out.println("user.name:"+userSmall.getName()+"
user.age:"+userSmall.getAge());
                }else if ("com.wtd.Department".equalsIgnoreCase(className)) {
                    System.out.println("className.department="+className);//com.wtd.Department
                    Department departmentSmall= (Department) objectSmall;
                    System.out.println("department.departname:"+departmentSmall.getDepartName()+"
department.departid:"+departmentSmall.getDepartId());
                }
                
            }
            
        }
        
    }

}

class User{
    int age;
    String name;
    public int getAge() {
        return age;
    }
    public void setAge(int age) {
        this.age = age;
    }
    public String getName() {
        return name;
    }
    public void setName(String name) {
        this.name = name;
    }
    
}

class Department{
    int departId;
    String departName;
    public int getDepartId() {
        return departId;
    }
    public void setDepartId(int departId) {
        this.departId = departId;
    }
    public String getDepartName() {
        return departName;
    }
    public void setDepartName(String departName) {
        this.departName = departName;
    }
    
}

解决此URL提出的问题：http://q.cnblogs.com/q/79494/