java 泛型的详解及实例

public class TestGeneric
{
  public static void main(String[] args) {
    List list = new ArrayList();
    list.add(" name:");
    list.add(" zero,");
    list.add(" age:");
    list.add(24);
    list.add(false);
    for (Object object : list)
    {
      String test = (String) object;
      System.out.print(test);
    }
  }
}

name:zero,age:Exception in thread "main" java.lang.ClassCastException: java.lang.Integer cannot be cast to java.lang.String
  at com.zm.zero.test.TestGeneric.main(TestGeneric.java:18)

public class JsonToModel
{

  /**
   * 
   * @param msg
   * @param t
   *      model类
   * @return
   */
  public static <T extends BaseModel<T>> T getJsonToModel(Message msg, Class<T> t) {
    // TODO Auto-generated method stub
    try
    {
      JsonObject jsonObject = new JsonParser().parse(msg.obj.toString())
          .getAsJsonObject().getAsJsonObject("info");
      return GsonHelper.toType(jsonObject.toString(), t);
    } catch (Exception e)
    {
      // TODO Auto-generated catch block
      e.printStackTrace();
    }
    return null;
  }
}