Java ÈÕÆÚ¼Ó減
public static void main(String[] args) {
String DATE_FORMAT = "yyyy-MM-dd";
java.text.SimpleDateFormat sdf = new java.text.SimpleDateFormat(
DATE_FORMAT);
Calendar c1 = Calendar.getInstance();
c1.set(1999, 0, 14);
System.out.println("Date is : " + sdf.format(c1.getTime()));
c1.add(Calendar.DATE, 366);
System.out.println("Date + 366 days is : "
+ sdf.format(c1.getTime()));
System.out.println("----------------------------");
c1.set(1999, 0, 31);
System.out.println("Date is : " + sdf.format(c1.getTime()));
c1.roll(Calendar.MONTH, false); // Ô·ݼõÈ¥Ò»¸öÔ£¬true Ϊ¼ÓÒ»¸öÔ£¬Äê¡¢ÈÕ²»¶¯
System.out.println("Date roll down 1 month : "
+ sdf.format(c1.getTime()));
c1.set(1999, 2, 31);
System.out.println("Date is : " + sdf.format(c1.getTime()));
c1.add(Calendar.MONTH, -1); // Ô·ݼõÈ¥Ò»¸öÔÂ
System.out.println("Date minus 1 month : "
+ sdf.format(c1.getTime()));
}
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