function DateDemo(){
var d, s = "Today's date is: "; // 声明变量。
d = new Date(); // 创建 Date 对象。
s += (d.getMonth() + 1) + "/"; // 获取月份。
s += d.getDate() + "/"; // 获取日。
s += d.getYear(); // 获取年份。
return(s); // 返回日期。
}
public Date getIssueDate(int a)
{
Date issueDate = null;
java.util.Calendar today = java.util.Calendar.getInstance();
int month = today.get(java.util.Calendar.MONTH)+1;
int year = today.get(java.util.Calendar.YEAR);
int day = today.get(java.util.Calendar.DAY_OF_MONTH);
String date = null;
switch(a)
{
case 1 :
day = day - 1;
date = year + "-" + month + "-" + day;
issueDate = Date.valueOf(date);
break;
case 2 :
day = day - 2;
date = year + "-" + month + "-" + day;
issueDate = Date.valueOf(date);
break;
case 3 :
day = day - 3;
date = year + "-" + month + "-" + day;
issueDate = Date.valueOf(date);
break;
case 4 :
day = day - 7;
date = year + "-" + month + "-" + day;
issueDate = Date.valueOf(date);
break;
case 5 :
day = day - 14;
date = year + "-" + month + "-" + day;
issueDate = Date.valueOf(date);
break;
case 6 :
month = month - 1;
date = year + "-" + month + "-" + day;
issueDate = Date.valueOf(date);
break;
case 7 :
month = month - 2;
date = year + "-" + month + "-" + day;
issueDate = Date.valueOf(date);
break;
}
//System.out.println(issueDate);
return issueDate;
}