Date轉化為時間戳

//Date或者String轉化為時間戳  
SimpleDateFormat format =  newSimpleDateFormat("yyyy-MM-dd HH:mm:ss");  
Date date = format.parse(time);  
System.out.print("Format To times:"+date.getTime());  

時間說轉化為Date

//時間戳轉化為Sting或Date  
SimpleDateFormat format =  newSimpleDateFormat("yyyy-MM-dd HH:mm:ss");  
Long time=newLong(445555555);  
String d = format.format(time);  
Date date=format.parse(d);  
System.out.println("Format To String(Date):"+d);  
System.out.println("Format To Date:"+date);