Android 時間工具類時間戳與日期間的各種互換

package com.pts.peoplehui.utils;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;
public class DateUtils {
public static String getTodayDateTime() {
SimpleDateFormat format = new SimpleDateFormat(“yyyy-MM-dd HH:mm:ss”,
Locale.getDefault());
return format.format(new Date());
}
/**
* 掉此方法輸入所要轉換的時間輸入例如（”2014年06月14日16時09分00秒”）返回時間戳
*
* @param time
* @return
*/
public String data(String time) {
SimpleDateFormat sdr = new SimpleDateFormat(“yyyy年MM月dd日HH時mm分ss秒”,
Locale.CHINA);
Date date;
String times = null;
try {
date = sdr.parse(time);
long l = date.getTime();
String stf = String.valueOf(l);
times = stf.substring(0, 10);
} catch (Exception e) {
e.printStackTrace();
}
return times;
}
public static String getTodayDateTimes() {
SimpleDateFormat format = new SimpleDateFormat(“MM月dd日”,
Locale.getDefault());
return format.format(new Date());
}
/**
* 獲取當前時間
*
* @return
*/
public static String getCurrentTime_Today() {
SimpleDateFormat sdf = new SimpleDateFormat(“yyyy-MM-dd-HH-mm-ss”);
return sdf.format(new java.util.Date());
}
/**
* 調此方法輸入所要轉換的時間輸入例如（”2014-06-14-16-09-00”）返回時間戳
*
* @param time
* @return
*/
public static String dataOne(String time) {
SimpleDateFormat sdr = new SimpleDateFormat(“yyyy-MM-dd-HH-mm-ss”,
Locale.CHINA);
Date date;
String times = null;
try {
date = sdr.parse(time);
long l = date.getTime();
String stf = String.valueOf(l);
times = stf.substring(0, 10);
} catch (Exception e) {
e.printStackTrace();
}
return times;
}
public static String getTimestamp(String time, String type) {
SimpleDateFormat sdr = new SimpleDateFormat(type, Locale.CHINA);
Date date;
String times = null;
try {
date = sdr.parse(time);
long l = date.getTime();
String stf = String.valueOf(l);
times = stf.substring(0, 10);
} catch (Exception e) {
e.printStackTrace();
}
return times;
}
/**
* 調用此方法輸入所要轉換的時間戳輸入例如（1402733340）輸出（”2014年06月14日16時09分00秒”）
*
* @param time
* @return
*/
public static String times(String time) {
SimpleDateFormat sdr = new SimpleDateFormat(“yyyy年MM月dd日HH時mm分ss秒”);
@SuppressWarnings(“unused”)
long lcc = Long.valueOf(time);
int i = Integer.parseInt(time);
String times = sdr.format(new Date(i * 1000L));
return times;
}
/**
* 調用此方法輸入所要轉換的時間戳輸入例如（1402733340）輸出（”2014-06-14 16:09:00”）
*
* @param time
* @return
*/
public static String timedate(String time) {
SimpleDateFormat sdr = new SimpleDateFormat(“yyyy-MM-dd HH:mm:ss”);
@SuppressWarnings(“unused”)
long lcc = Long.valueOf(time);
int i = Integer.parseInt(time);
String times = sdr.format(new Date(i * 1000L));
return times;
}
/**
* 調用此方法輸入所要轉換的時間戳輸入例如（1402733340）輸出（”2014年06月14日16:09”）
*
* @param time
* @return
*/
public static String timet(String time) {
SimpleDateFormat sdr = new SimpleDateFormat(“yyyy年MM月dd日 HH:mm”);
@SuppressWarnings(“unused”)
long lcc = Long.valueOf(time);
int i = Integer.parseInt(time);
String times = sdr.format(new Date(i * 1000L));
return times;
}
/**
* @param time斜槓分開
* @return
*/
public static String timeslash(String time) {
SimpleDateFormat sdr = new SimpleDateFormat(“yyyy/MM/dd,HH:mm”);
@SuppressWarnings(“unused”)
long lcc = Long.valueOf(time);
int i = Integer.parseInt(time);
String times = sdr.format(new Date(i * 1000L));
return times;
}
/**
* @param time斜槓分開
* @return
*/
public static String timeslashData(String time) {
SimpleDateFormat sdr = new SimpleDateFormat(“yyyy/MM/dd”);
@SuppressWarnings(“unused”)
long lcc = Long.valueOf(time);
// int i = Integer.parseInt(time);
String times = sdr.format(new Date(lcc * 1000L));
return times;
}
/**
* @param time斜槓分開
* @return
*/
public static String timeMinute(String time) {
SimpleDateFormat sdr = new SimpleDateFormat(“HH:mm”);
@SuppressWarnings(“unused”)
long lcc = Long.valueOf(time);
int i = Integer.parseInt(time);
String times = sdr.format(new Date(i * 1000L));
return times;
}
public static String tim(String time) {
SimpleDateFormat sdr = new SimpleDateFormat(“yyyyMMdd HH:mm”);
@SuppressWarnings(“unused”)
long lcc = Long.valueOf(time);
int i = Integer.parseInt(time);
String times = sdr.format(new Date(i * 1000L));
return times;
}
public static String time(String time) {
SimpleDateFormat sdr = new SimpleDateFormat(“yyyy-MM-dd HH:mm”);
@SuppressWarnings(“unused”)
long lcc = Long.valueOf(time);
int i = Integer.parseInt(time);
String times = sdr.format(new Date(i * 1000L));
return times;
}
// 調用此方法輸入所要轉換的時間戳例如（1402733340）輸出（”2014年06月14日16時09分00秒”）
public static String times(long timeStamp) {
SimpleDateFormat sdr = new SimpleDateFormat(“MM月dd日 # HH:mm”);
return sdr.format(new Date(timeStamp)).replaceAll(“#”,
getWeek(timeStamp));
}
private static String getWeek(long timeStamp) {
int mydate = 0;
String week = null;
Calendar cd = Calendar.getInstance();
cd.setTime(new Date(timeStamp));
mydate = cd.get(Calendar.DAY_OF_WEEK);
// 獲取指定日期轉換成星期幾
if (mydate == 1) {
week = ”週日”;
} else if (mydate == 2) {
week = ”週一”;
} else if (mydate == 3) {
week = ”週二”;
} else if (mydate == 4) {
week = ”週三”;
} else if (mydate == 5) {
week = ”週四”;
} else if (mydate == 6) {
week = ”週五”;
} else if (mydate == 7) {
week = ”週六”;
}
return week;
}
// 並用分割符把時間分成時間數組
/**
* 調用此方法輸入所要轉換的時間戳輸入例如（1402733340）輸出（”2014-06-14-16-09-00”）
*
* @param time
* @return
*/
public String timesOne(String time) {
SimpleDateFormat sdr = new SimpleDateFormat(“yyyy-MM-dd-HH-mm-ss”);
@SuppressWarnings(“unused”)
long lcc = Long.valueOf(time);
int i = Integer.parseInt(time);
String times = sdr.format(new Date(i * 1000L));
return times;
}
public static String timesTwo(String time) {
SimpleDateFormat sdr = new SimpleDateFormat(“yyyy-MM-dd”);
@SuppressWarnings(“unused”)
long lcc = Long.valueOf(time);
int i = Integer.parseInt(time);
String times = sdr.format(new Date(i * 1000L));
return times;
}
/**
* 並用分割符把時間分成時間數組
*
* @param time
* @return
*/
public static String[] timestamp(String time) {
SimpleDateFormat sdr = new SimpleDateFormat(“yyyy年MM月dd日HH時mm分ss秒”);
@SuppressWarnings(“unused”)
long lcc = Long.valueOf(time);
int i = Integer.parseInt(time);
String times = sdr.format(new Date(i * 1000L));
String[] fenge = times.split(”[年月日時分秒]”);
return fenge;
}
/**
* 根據傳遞的類型格式化時間
*
* @param str
* @param type
* 例如：yy-MM-dd
* @return
*/
public static String getDateTimeByMillisecond(String str, String type) {
Date date = new Date(Long.valueOf(str));
SimpleDateFormat format = new SimpleDateFormat(type);
String time = format.format(date);
return time;
}
/**
* 分割符把時間分成時間數組
*
* @param time
* @return
*/
public String[] division(String time) {
String[] fenge = time.split(”[年月日時分秒]”);
return fenge;
}
/**
* 輸入時間戳變星期
*
* @param time
* @return
*/
public static String changeweek(String time) {
SimpleDateFormat sdr = new SimpleDateFormat(“yyyy年MM月dd日HH時mm分ss秒”);
long lcc = Long.valueOf(time);
int i = Integer.parseInt(time);
String times = sdr.format(new Date(i * 1000L));
Date date = null;
int mydate = 0;
String week = null;
try {
date = sdr.parse(times);
Calendar cd = Calendar.getInstance();
cd.setTime(date);
mydate = cd.get(Calendar.DAY_OF_WEEK);
// 獲取指定日期轉換成星期幾
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if (mydate == 1) {
week = ”星期日”;
} else if (mydate == 2) {
week = ”星期一”;
} else if (mydate == 3) {
week = ”星期二”;
} else if (mydate == 4) {
week = ”星期三”;
} else if (mydate == 5) {
week = ”星期四”;
} else if (mydate == 6) {
week = ”星期五”;
} else if (mydate == 7) {
week = ”星期六”;
}
return week;
}
/**
* 獲取日期和星期　例如：２０１４－１１－１３　１１:００　星期一
*
* @param time
* @param type
* @return
*/
public static String getDateAndWeek(String time, String type) {
return getDateTimeByMillisecond(time + “000”, type) + “ ”
+ changeweekOne(time);
}
/**
* 輸入時間戳變星期
*
* @param time
* @return
*/
public static String changeweekOne(String time) {
SimpleDateFormat sdr = new SimpleDateFormat(“yyyy-MM-dd-HH-mm-ss”);
long lcc = Long.valueOf(time);
int i = Integer.parseInt(time);
String times = sdr.format(new Date(i * 1000L));
Date date = null;
int mydate = 0;
String week = null;
try {
date = sdr.parse(times);
Calendar cd = Calendar.getInstance();
cd.setTime(date);
mydate = cd.get(Calendar.DAY_OF_WEEK);
// 獲取指定日期轉換成星期幾
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if (mydate == 1) {
week = ”星期日”;
} else if (mydate == 2) {
week = ”星期一”;
} else if (mydate == 3) {
week = ”星期二”;
} else if (mydate == 4) {
week = ”星期三”;
} else if (mydate == 5) {
week = ”星期四”;
} else if (mydate == 6) {
week = ”星期五”;
} else if (mydate == 7) {
week = ”星期六”;
}
return week;
}
/**
* 獲取當前時間
*
* @return
*/
public static String getCurrentTime() {
SimpleDateFormat sdf = new SimpleDateFormat(“yyyy-MM-dd HH:mm”);
return sdf.format(new java.util.Date());
}
/**
* 輸入日期如（2014年06月14日16時09分00秒）返回（星期數）
*
* @param time
* @return
*/
public String week(String time) {
Date date = null;
SimpleDateFormat sdr = new SimpleDateFormat(“yyyy年MM月dd日HH時mm分ss秒”);
int mydate = 0;
String week = null;
try {
date = sdr.parse(time);
Calendar cd = Calendar.getInstance();
cd.setTime(date);
mydate = cd.get(Calendar.DAY_OF_WEEK);
// 獲取指定日期轉換成星期幾
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if (mydate == 1) {
week = ”星期日”;
} else if (mydate == 2) {
week = ”星期一”;
} else if (mydate == 3) {
week = ”星期二”;
} else if (mydate == 4) {
week = ”星期三”;
} else if (mydate == 5) {
week = ”星期四”;
} else if (mydate == 6) {
week = ”星期五”;
} else if (mydate == 7) {
week = ”星期六”;
}
return week;
}
/**
* 輸入日期如（2014-06-14-16-09-00）返回（星期數）
*
* @param time
* @return
*/
public String weekOne(String time) {
Date date = null;
SimpleDateFormat sdr = new SimpleDateFormat(“yyyy-MM-dd-HH-mm-ss”);
int mydate = 0;
String week = null;
try {
date = sdr.parse(time);
Calendar cd = Calendar.getInstance();
cd.setTime(date);
mydate = cd.get(Calendar.DAY_OF_WEEK);
// 獲取指定日期轉換成星期幾
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
if (mydate == 1) {
week = ”星期日”;
} else if (mydate == 2) {
week = ”星期一”;
} else if (mydate == 3) {
week = ”星期二”;
} else if (mydate == 4) {
week = ”星期三”;
} else if (mydate == 5) {
week = ”星期四”;
} else if (mydate == 6) {
week = ”星期五”;
} else if (mydate == 7) {
week = ”星期六”;
}
return week;
}
}

package com.pts.peoplehui.utils;

import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.Locale;

public class DateUtils {

    public static String getTodayDateTime() {
        SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss",
                Locale.getDefault());
        return format.format(new Date());
    }

    /**
     * 掉此方法輸入所要轉換的時間輸入例如（"2014年06月14日16時09分00秒"）返回時間戳
     * 
     * @param time
     * @return
     */
    public String data(String time) {
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy年MM月dd日HH時mm分ss秒",
                Locale.CHINA);
        Date date;
        String times = null;
        try {
            date = sdr.parse(time);
            long l = date.getTime();
            String stf = String.valueOf(l);
            times = stf.substring(0, 10);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return times;
    }

    public static String getTodayDateTimes() {
        SimpleDateFormat format = new SimpleDateFormat("MM月dd日",
                Locale.getDefault());
        return format.format(new Date());
    }

    /**
     * 獲取當前時間
     * 
     * @return
     */
    public static String getCurrentTime_Today() {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
        return sdf.format(new java.util.Date());
    }

    /**
     * 調此方法輸入所要轉換的時間輸入例如（"2014-06-14-16-09-00"）返回時間戳
     * 
     * @param time
     * @return
     */
    public static String dataOne(String time) {
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss",
                Locale.CHINA);
        Date date;
        String times = null;
        try {
            date = sdr.parse(time);
            long l = date.getTime();
            String stf = String.valueOf(l);
            times = stf.substring(0, 10);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return times;
    }

    public static String getTimestamp(String time, String type) {
        SimpleDateFormat sdr = new SimpleDateFormat(type, Locale.CHINA);
        Date date;
        String times = null;
        try {
            date = sdr.parse(time);
            long l = date.getTime();
            String stf = String.valueOf(l);
            times = stf.substring(0, 10);
        } catch (Exception e) {
            e.printStackTrace();
        }
        return times;
    }

    /**
     * 調用此方法輸入所要轉換的時間戳輸入例如（1402733340）輸出（"2014年06月14日16時09分00秒"）
     * 
     * @param time
     * @return
     */
    public static String times(String time) {
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy年MM月dd日HH時mm分ss秒");
        @SuppressWarnings("unused")
        long lcc = Long.valueOf(time);
        int i = Integer.parseInt(time);
        String times = sdr.format(new Date(i * 1000L));
        return times;

    }

    /**
     * 調用此方法輸入所要轉換的時間戳輸入例如（1402733340）輸出（"2014-06-14  16:09:00"）
     * 
     * @param time
     * @return
     */
    public static String timedate(String time) {
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
        @SuppressWarnings("unused")
        long lcc = Long.valueOf(time);
        int i = Integer.parseInt(time);
        String times = sdr.format(new Date(i * 1000L));
        return times;

    }

    /**
     * 調用此方法輸入所要轉換的時間戳輸入例如（1402733340）輸出（"2014年06月14日16:09"）
     * 
     * @param time
     * @return
     */
    public static String timet(String time) {
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy年MM月dd日  HH:mm");
        @SuppressWarnings("unused")
        long lcc = Long.valueOf(time);
        int i = Integer.parseInt(time);
        String times = sdr.format(new Date(i * 1000L));
        return times;

    }

    /**
     * @param time斜槓分開
     * @return
     */
    public static String timeslash(String time) {
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy/MM/dd,HH:mm");
        @SuppressWarnings("unused")
        long lcc = Long.valueOf(time);
        int i = Integer.parseInt(time);
        String times = sdr.format(new Date(i * 1000L));
        return times;

    }

    /**
     * @param time斜槓分開
     * @return
     */
    public static String timeslashData(String time) {
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy/MM/dd");
        @SuppressWarnings("unused")
        long lcc = Long.valueOf(time);
//      int i = Integer.parseInt(time);
        String times = sdr.format(new Date(lcc * 1000L));
        return times;

    }

    /**
     * @param time斜槓分開
     * @return
     */
    public static String timeMinute(String time) {
        SimpleDateFormat sdr = new SimpleDateFormat("HH:mm");
        @SuppressWarnings("unused")
        long lcc = Long.valueOf(time);
        int i = Integer.parseInt(time);
        String times = sdr.format(new Date(i * 1000L));
        return times;

    }

    public static String tim(String time) {
        SimpleDateFormat sdr = new SimpleDateFormat("yyyyMMdd HH:mm");
        @SuppressWarnings("unused")
        long lcc = Long.valueOf(time);
        int i = Integer.parseInt(time);
        String times = sdr.format(new Date(i * 1000L));
        return times;
    }

    public static String time(String time) {
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd HH:mm");
        @SuppressWarnings("unused")
        long lcc = Long.valueOf(time);
        int i = Integer.parseInt(time);
        String times = sdr.format(new Date(i * 1000L));
        return times;
    }

    // 調用此方法輸入所要轉換的時間戳例如（1402733340）輸出（"2014年06月14日16時09分00秒"）
    public static String times(long timeStamp) {
        SimpleDateFormat sdr = new SimpleDateFormat("MM月dd日  #  HH:mm");
        return sdr.format(new Date(timeStamp)).replaceAll("#",
                getWeek(timeStamp));

    }

    private static String getWeek(long timeStamp) {
        int mydate = 0;
        String week = null;
        Calendar cd = Calendar.getInstance();
        cd.setTime(new Date(timeStamp));
        mydate = cd.get(Calendar.DAY_OF_WEEK);
        // 獲取指定日期轉換成星期幾
        if (mydate == 1) {
            week = "週日";
        } else if (mydate == 2) {
            week = "週一";
        } else if (mydate == 3) {
            week = "週二";
        } else if (mydate == 4) {
            week = "週三";
        } else if (mydate == 5) {
            week = "週四";
        } else if (mydate == 6) {
            week = "週五";
        } else if (mydate == 7) {
            week = "週六";
        }
        return week;
    }

    // 並用分割符把時間分成時間數組
    /**
     * 調用此方法輸入所要轉換的時間戳輸入例如（1402733340）輸出（"2014-06-14-16-09-00"）
     * 
     * @param time
     * @return
     */
    public String timesOne(String time) {
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
        @SuppressWarnings("unused")
        long lcc = Long.valueOf(time);
        int i = Integer.parseInt(time);
        String times = sdr.format(new Date(i * 1000L));
        return times;

    }

    public static String timesTwo(String time) {
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd");
        @SuppressWarnings("unused")
        long lcc = Long.valueOf(time);
        int i = Integer.parseInt(time);
        String times = sdr.format(new Date(i * 1000L));
        return times;

    }

    /**
     * 並用分割符把時間分成時間數組
     * 
     * @param time
     * @return
     */
    public static String[] timestamp(String time) {
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy年MM月dd日HH時mm分ss秒");
        @SuppressWarnings("unused")
        long lcc = Long.valueOf(time);
        int i = Integer.parseInt(time);
        String times = sdr.format(new Date(i * 1000L));
        String[] fenge = times.split("[年月日時分秒]");
        return fenge;
    }

    /**
     * 根據傳遞的類型格式化時間
     * 
     * @param str
     * @param type
     *            例如：yy-MM-dd
     * @return
     */
    public static String getDateTimeByMillisecond(String str, String type) {

        Date date = new Date(Long.valueOf(str));

        SimpleDateFormat format = new SimpleDateFormat(type);

        String time = format.format(date);

        return time;
    }

    /**
     * 分割符把時間分成時間數組
     * 
     * @param time
     * @return
     */
    public String[] division(String time) {

        String[] fenge = time.split("[年月日時分秒]");

        return fenge;

    }

    /**
     * 輸入時間戳變星期
     * 
     * @param time
     * @return
     */
    public static String changeweek(String time) {
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy年MM月dd日HH時mm分ss秒");
        long lcc = Long.valueOf(time);
        int i = Integer.parseInt(time);
        String times = sdr.format(new Date(i * 1000L));
        Date date = null;
        int mydate = 0;
        String week = null;
        try {
            date = sdr.parse(times);
            Calendar cd = Calendar.getInstance();
            cd.setTime(date);
            mydate = cd.get(Calendar.DAY_OF_WEEK);
            // 獲取指定日期轉換成星期幾
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        if (mydate == 1) {
            week = "星期日";
        } else if (mydate == 2) {
            week = "星期一";
        } else if (mydate == 3) {
            week = "星期二";
        } else if (mydate == 4) {
            week = "星期三";
        } else if (mydate == 5) {
            week = "星期四";
        } else if (mydate == 6) {
            week = "星期五";
        } else if (mydate == 7) {
            week = "星期六";
        }
        return week;

    }

    /**
     * 獲取日期和星期　例如：２０１４－１１－１３　１１:００　星期一
     * 
     * @param time
     * @param type
     * @return
     */
    public static String getDateAndWeek(String time, String type) {
        return getDateTimeByMillisecond(time + "000", type) + "  "
                + changeweekOne(time);
    }

    /**
     * 輸入時間戳變星期
     * 
     * @param time
     * @return
     */
    public static String changeweekOne(String time) {
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
        long lcc = Long.valueOf(time);
        int i = Integer.parseInt(time);
        String times = sdr.format(new Date(i * 1000L));
        Date date = null;
        int mydate = 0;
        String week = null;
        try {
            date = sdr.parse(times);
            Calendar cd = Calendar.getInstance();
            cd.setTime(date);
            mydate = cd.get(Calendar.DAY_OF_WEEK);
            // 獲取指定日期轉換成星期幾
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        if (mydate == 1) {
            week = "星期日";
        } else if (mydate == 2) {
            week = "星期一";
        } else if (mydate == 3) {
            week = "星期二";
        } else if (mydate == 4) {
            week = "星期三";
        } else if (mydate == 5) {
            week = "星期四";
        } else if (mydate == 6) {
            week = "星期五";
        } else if (mydate == 7) {
            week = "星期六";
        }
        return week;

    }

    /**
     * 獲取當前時間
     * 
     * @return
     */
    public static String getCurrentTime() {
        SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd HH:mm");
        return sdf.format(new java.util.Date());
    }

    /**
     * 輸入日期如（2014年06月14日16時09分00秒）返回（星期數）
     * 
     * @param time
     * @return
     */
    public String week(String time) {
        Date date = null;
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy年MM月dd日HH時mm分ss秒");
        int mydate = 0;
        String week = null;
        try {
            date = sdr.parse(time);
            Calendar cd = Calendar.getInstance();
            cd.setTime(date);
            mydate = cd.get(Calendar.DAY_OF_WEEK);
            // 獲取指定日期轉換成星期幾
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        if (mydate == 1) {
            week = "星期日";
        } else if (mydate == 2) {
            week = "星期一";
        } else if (mydate == 3) {
            week = "星期二";
        } else if (mydate == 4) {
            week = "星期三";
        } else if (mydate == 5) {
            week = "星期四";
        } else if (mydate == 6) {
            week = "星期五";
        } else if (mydate == 7) {
            week = "星期六";
        }
        return week;
    }

    /**
     * 輸入日期如（2014-06-14-16-09-00）返回（星期數）
     * 
     * @param time
     * @return
     */
    public String weekOne(String time) {
        Date date = null;
        SimpleDateFormat sdr = new SimpleDateFormat("yyyy-MM-dd-HH-mm-ss");
        int mydate = 0;
        String week = null;
        try {
            date = sdr.parse(time);
            Calendar cd = Calendar.getInstance();
            cd.setTime(date);
            mydate = cd.get(Calendar.DAY_OF_WEEK);
            // 獲取指定日期轉換成星期幾
        } catch (Exception e) {
            // TODO Auto-generated catch block
            e.printStackTrace();
        }
        if (mydate == 1) {
            week = "星期日";
        } else if (mydate == 2) {
            week = "星期一";
        } else if (mydate == 3) {
            week = "星期二";
        } else if (mydate == 4) {
            week = "星期三";
        } else if (mydate == 5) {
            week = "星期四";
        } else if (mydate == 6) {
            week = "星期五";
        } else if (mydate == 7) {
            week = "星期六";
        }
        return week;
    }
}

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Android 時間工具類 時間戳與日期間的各種互換

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