单独输出年月日时分秒等

private static void time() {
Calendar c = Calendar.getInstance();
System.out.println("年: " + c.get(Calendar.YEAR));
// 月份从0开始，加1校正
System.out.println("月: " + (c.get(Calendar.MONTH) + 1) + "");
System.out.println("日: " + c.get(Calendar.DAY_OF_MONTH));
System.out.println("时: " + c.get(Calendar.HOUR_OF_DAY));
System.out.println("分: " + c.get(Calendar.MINUTE));
System.out.println("秒: " + c.get(Calendar.SECOND));
System.out.println("当前时间: " + c.getTime());
}