java - 从此格式获取当前日期 2019-06-30

Question

我该怎么做？

Year 2019, Month July, Date 30

仅采用此格式并来自日历 (java.util) 对象

<小时/>

private String getCurrentDate() {
        Calendar calendar = Calendar.getInstance();
        SimpleDateFormat mdformat = new SimpleDateFormat("yyyy-MM-dd");
        return mdformat.format(calendar.getTime()); }

Answer 1

如果您只想使用日历:

Calendar c = Calendar.getInstance();
String result = "Year " + c.get(Calendar.YEAR) +
                ", Month " + new SimpleDateFormat("MMMM").format(c.getTime()) +
                ", Date " + c.get(DAY_OF_MONTH);
System.out.println(result);

将打印:

Year 2019, Month June, Date 4

如果您甚至不想使用SimpleDateFormat:

String[] months = {
        "January", "February", "March", "April", "May", "June",
        "July", "August", "September", "October", "November", "December"
};
Calendar c = Calendar.getInstance();
String result = "Year " + c.get(Calendar.YEAR) +
        ", Month " + months[c.get(Calendar.MONTH)] +
        ", Date " + c.get(DAY_OF_MONTH);
System.out.println(result);

还将打印:

Year 2019, Month June, Date 4