[Java] 將陣列轉為ArrayList

String[] phone = {"0", "1", "2"}
ArrayList arrayphone = new ArrayList(Arrays.asList(phone.split(",")));
這樣可以把Array轉為ArrayList

[Java] Hibernate Query用法

Query query = hsession.createQuery("from abc where sn = :sn");
query.setString("sn", sn);

abc abc = (abc)query.uniqueResult();

query.uniqueResult(); 用Hibernate中取得一筆資料，限制是選出的資料只有一筆

[Java] 複製clone()的使用方式

Stack copy = (Stack)list.clone();

參照http://royaltykao.blogspot.com/2008/10/javaclone.html

[Java] NumberFormat 數字格式化

int i=0;
NumberFormat nf=NumberFormat.getInstance();
nf.setMinimumIntegerDigits(3);
for(i=0; i<107; i++){
int j=i;
System.out.println("");

}

或
NumberFormat formatter = NumberFormat.getInstance();
formatter.setMinimumIntegerDigits(3); 不滿三位數前面補0
formatter.setGroupingUsed(false);
String rnd=formatter.format(int);

[Java] Dom4j 解析xml格式(二)


Element element = (Element) config_xml.selectSingleNode("/root/jack[@sn='"+rand+"']");
if(element != null){
String attribute = element.attributeValue("sn");
String text = element.getText();
}

取xml中屬性的方式，先轉成Element 在判斷是否為空值
<root>
<jack sn="1">AAA</jack>
</root>
上面語法attribute變數的值是取jack中屬性sn的value，text變數的值為AAA

Date date = new Date();

SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd");

String a = sdf.format(date.getTime());

date = sdf.parse(a);

Test t = new Test();

t.setStartDate(date);

Date enddate = new Date();

String end = sdf.format(date.getTime()+(60L*60L*24L*30L*1000));
enddate = sdf.parse(end);

t.setEndDate(enddate);

Session session = MulderSessionFactory.getSession();
Transaction tx = session.beginTransaction();
session.saveOrUpdate(t);
tx.commit();
MulderSessionFactory.closeSession();

note

JSTL API
http://java.sun.com/products/jsp/jstl/1.1/docs/api/index.html

JSTL TLD
http://java.sun.com/products/jsp/jstl/1.1/docs/tlddocs/index.html

workspace\.metadata\.plugins\org.eclipse.wst.server.core\tmp0\wtpwebapps\專案名稱

http://javaprepare.com/
http://www.javaranch.com/
http://www.digitalthink.com/
http://www.jaworski.com/java/certification
http://www.jchq.net/
http://www.certificationguru.com/