关于java列表数据类型(ArrayList, LinkedList)的add与get

ArrayList, LinkedList之类的数据，

当add时，需要要new一个对象，或者定义一个新的对象，才能add进来。

如果说，int tem = new int();

然后 for(int i = 0; i < 10; i++)

{

tem = i;

list.add(tem);

}

这样是不行的，因为tem是一个对象，add多少次，add进来的值都是最后一个tem对象。list元素里面放的都是指针，这个指针指向tem对象。下面的代码才是正确的：

然后 for(int i = 0; i < 10; i++)

{int tem = new int();

list.add(tem);

}

下面的代码是开发车险时的相关的问题，已经改成正确的

public List<CarInsurOrderCarInfo> findOrderCarInfo(String brchNo,

String sDate, String eDate, String carID, String statusInput,

String companyNo) {

try {

Session session = getHibernateTemplate().getSessionFactory()

.getCurrentSession();

/*

String queryString = "select t1.orderid,t1.companyid,t1.carnumber,t1.payamt,t2.companyName from T33CarinsuranceOrder as t1,"

+ "T33CarinsuranceCompany as t2 where t1.txnbranch='"

+ brchNo

+ "' and t1.orderstatus='02' and t1.companyid=t2.companyId";

*/

//String queryString = "select t.seq1, t.orderid, t.orderstatus, t1.name, t.carnumber, t.companyid, t2.company_name, t.compreappno, t.commerceappno, t.datezhifu, t1.shenfenID from T33CarinsuranceOrder t, customerQT t1, CarInsurCompany
t2 where t.carnumber = t1.carNum and t.companyid = t2.company_id ";

String queryString = "select t.seq1, t.orderid, t.orderstatus, t1.name, t.carnumber, t.companyid, t2.company_name, t.compreappno, t.commerceappno, t.datezhifu, t1.shenfenID from T33CarinsuranceOrder t, customerQT t1, CarInsurCompany
t2 ";

System.out.println(queryString);

Query query = session.createQuery(queryString);

List result = query.list();

List list = new ArrayList();

//List list = new LinkedList();

Iterator it = result.iterator();

int tableSeq = 1;

while (it.hasNext()) {

System.out.println("into while");

CarInsurOrderCarInfo rowinfo=new CarInsurOrderCarInfo();

Object[] object=(Object[]) it.next();

String seq1=(String) object[0];

String orderid=(String) object[1];

String status = (String) object[2];

String ownerName=(String) object[3];

String carnumber=(String) object[4];

String companyid=(String) object[5];

String company_name=(String) object[6];

String compreappno=(String) object[7];

String commerceappno=(String) object[8];

String datezhifu=(String) object[9];

String ownerID=(String) object[10];

rowinfo.setTableSeq(tableSeq);

rowinfo.setSeq1(seq1);

rowinfo.setStatus(status);

rowinfo.setOrderid(orderid);

rowinfo.setOwnerID(ownerID);

rowinfo.setOwnerName(ownerName);

rowinfo.setCarnumber(carnumber);

rowinfo.setCompanyid(companyid);

rowinfo.setCompany_name(company_name);

rowinfo.setCompreappno(compreappno);

rowinfo.setCommerceappno(commerceappno);

rowinfo.setDatezhifu(datezhifu);

tableSeq++;

list.add(rowinfo);

System.out.println(rowinfo.getCompany_name());

System.out.println(list.size());

}