1: String name = request.getParameter('Name'); 1: String[] nameList = request.getParameterValues('ListName'); 1: request.setAttribute('var',value); 1: session.setAttribute('var',value);
2: session.getAttribute('var');
3: session.removeAttribute('var'); 1: String[] col= MyStr.split(','); 1: MyList.length; 1: Integer.parseInt(Str); 1: <bean:write name='Obj' PRoperty='Id' /> //對象的某個屬性
2: <bean:write name='name' /> 1: Map condition= new HashMap();
2: condition.put('name', value);
3: condition.get('name'); 1: Date date= new Date();
2: SimpleDateFormat df= new SimpleDateFormat('yyyy-MM-dd');
3: String today = df.format(date); //把日期型轉換為字符串
4: Date day = df.parse('2005-08-09'); 1: import java.util.*;
2: public class DateSuBTraction{
3: public static void main(String [] args){
4: Calendar cal = Calendar.getInstance();
5: cal.set(2000, Calendar.AUGUST, 24);
6: Date d1 = cal.getTime();
7: cal.set(2000, Calendar.AUGUST, 28);
8: Date d2 = cal.getTime();
9: long daterange = d2.getTime() - d1.getTime();
10: long time = 1000*3600*24; //A day in milliseconds
11: System.out.println(daterange/time);
12: }
13: } 1: public class MemoryStats{
2: public static void main(String args[]){
3: long totalMem = Runtime.getRuntime().totalMemory();
4: long freeMem = Runtime.getRuntime().freeMemory();
5: System.out.println('Total memory'+ totalMem);
6: System.out.println('Free memory' + freeMem);
7: }
8: } 新聞熱點
疑難解答
