获取当前月天数
/**
* 获取当月的天数
*/
public static int getCurrentMonthDay() {
Calendar calendar = Calendar.getInstance();
calendar.set(Calendar.DATE, 1);
calendar.roll(Calendar.DATE, -1);
int num = calendar.get(Calendar.DATE);
return num;
}
获取前一个月的天数
/**
* 获取前一个月的天数
*/
public static int getBeforeMonthDay() {
Calendar calendar = Calendar.getInstance();
calendar.add(Calendar.MONTH,-1);
calendar.set(Calendar.DATE, 1);
calendar.roll(Calendar.DATE, -1);
int num = calendar.get(Calendar.DATE);
return num;
}