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Java 獲取時間毫秒數並格式化

package com.hualanhai.datatime;

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

public class ShowTime {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
//      SimpleDateFormat sdf = new SimpleDateFormat("yyyy-MM-dd"
); // String startTime = sdf.format(startTime); // SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd HH:mm:ss"); SimpleDateFormat sdf = new SimpleDateFormat("yyyy/MM/dd' 'HH:mm"); String starTime = sdf.format(new Date()); System.out.println(starTime); String[] strs = starTime.split
(" "); String resString = Arrays.toString(strs); System.out.println(resString); System.out.println(strs[0]); //獲取當前時間毫秒數 java.util.Date savetime = new java.util.Date(); System.out.println("當前時間毫秒數字"+savetime.getTime()); //毫秒數格式為當前時間 // long sd=1345185923140
L; // Date dat=new Date(sd); // GregorianCalendar gc = new GregorianCalendar(); // gc.setTime(dat); // java.text.SimpleDateFormat format = new java.text.SimpleDateFormat("yyyy-MM-dd hh:mm:ss"); // String sb=format.format(gc.getTime()); // System.out.println(sb); Date dattimeDate = new Date(savetime.getTime()); Calendar calendar = Calendar.getInstance(); calendar.setTime(dattimeDate); SimpleDateFormat formattwo = new SimpleDateFormat("yyyy/MM/dd' 'HH:mm"); String nowtime = formattwo.format(calendar.getTime()); System.out.println("當前已經格式化的時間"+nowtime); } }