java 日期时间格式控制及转化

import java.io.*;import java.util.*;import java.text.*;public class TestSimpleDateFormat3{public static void main(String[] args) throws Exception{long n = System.currentTimeMillis();SimpleDateFormat f = new SimpleDateFormat("yyyy-MM-dd : HH-mm-ss");String time = f.format(n);System.out.println(time);String str = "1995-09-25 : 00-00-00";Date date = f.parse(str);long t = date.getTime();System.out.println(t);Calendar cal = Calendar.getInstance();cal.setTimeInMillis(t);System.out.println(cal.get(1));System.out.println(cal.get(2) + 1);  /// ....月份System.out.println(cal.get(5));System.out.println(cal.get(11));System.out.println(cal.get(12));System.out.println(cal.get(13));}}

月份是从0开始计数的。。。