Java Format Timestamp

Java Format Timestamp - java

I have below Java code to convert string format to Timestamp object
public class TestUtil{
Object result;
Public Object convertFormat(String format, String value, String type){
String format = "yyyyMMddHHmmss";
String value = "20050225144824";
SimpleDateFormat dformat = new SimpleDateFormat(format);
java.util.Date date = dformat.parse(value);
result = new Timestamp(date.getTime);
System.out.println("Result::"+ result);
}
}
Expected outcome:
I was expecting the outcome should be like below
20050225144824
Actual outcome:
2005-02-25 14:48:24.0
Could anyone tell me what I am missing here? To get "20050225144824" this result

The below code runs fine for me.
Adding few print statements to explain the different behaviors.
import java.util.Date;
import java.text.SimpleDateFormat;
import java.sql.Timestamp;
public class Main
{
public static void main(String[] args) {
String myFormat = "yyyyMMddHHmmss";
String value = "20050225144824";
try {
SimpleDateFormat dformat = new SimpleDateFormat("yyyyMMddHHmmss");
Date date = dformat.parse(value);
Timestamp ts = new Timestamp(date.getTime());
Object result = new Timestamp(date.getTime());
System.out.println("Timestamp Format with yyyyMMddHHmmss : " +dformat.format(ts));
System.out.println("Object Format with yyyyMMddHHmmss : " +result);
System.out.println("Object Format with yyyyMMddHHmmss : " +dformat.format(result));
} catch(Exception e) {
e.printStackTrace();
}
}
}
Here is the output of the different behaviors :
Timestamp Format with yyyyMMddHHmmss : 20050225144824
Object Format with yyyyMMddHHmmss : 2005-02-25 14:48:24.0
Object Format with yyyyMMddHHmmss : 20050225144824

If you expect Timestamp to return your custom output then you need to override the default Timestamp library.
Here I create CustomTimestamp.java to extend Timestamp and override its toString() method. I modified the changes according to your requirement.
public class CustomTimestamp extends Timestamp {
private int nanos;
public CustomTimestamp(long time) {
super(time);
}
#Override
public String toString () {
int year = super.getYear() + 1900;
int month = super.getMonth() + 1;
int day = super.getDate();
int hour = super.getHours();
int minute = super.getMinutes();
int second = super.getSeconds();
String yearString;
String monthString;
String dayString;
String hourString;
String minuteString;
String secondString;
String nanosString;
String zeros = "000000000";
String yearZeros = "0000";
StringBuffer timestampBuf;
if (year < 1000) {
// Add leading zeros
yearString = "" + year;
yearString = yearZeros.substring(0, (4-yearString.length())) +
yearString;
} else {
yearString = "" + year;
}
if (month < 10) {
monthString = "0" + month;
} else {
monthString = Integer.toString(month);
}
if (day < 10) {
dayString = "0" + day;
} else {
dayString = Integer.toString(day);
}
if (hour < 10) {
hourString = "0" + hour;
} else {
hourString = Integer.toString(hour);
}
if (minute < 10) {
minuteString = "0" + minute;
} else {
minuteString = Integer.toString(minute);
}
if (second < 10) {
secondString = "0" + second;
} else {
secondString = Integer.toString(second);
}
if (nanos == 0) {
nanosString = "";
} else {
nanosString = Integer.toString(nanos);
// Add leading zeros
nanosString = zeros.substring(0, (9-nanosString.length())) +
nanosString;
// Truncate trailing zeros
char[] nanosChar = new char[nanosString.length()];
nanosString.getChars(0, nanosString.length(), nanosChar, 0);
int truncIndex = 8;
while (nanosChar[truncIndex] == '0') {
truncIndex--;
}
nanosString = new String(nanosChar, 0, truncIndex + 1);
}
// do a string buffer here instead.
timestampBuf = new StringBuffer(20+nanosString.length());
timestampBuf.append(yearString);
timestampBuf.append(monthString);
timestampBuf.append(dayString);
timestampBuf.append(hourString);
timestampBuf.append(minuteString);
timestampBuf.append(secondString);
timestampBuf.append(nanosString);
return (timestampBuf.toString());
}
}
Your main class should use CustomTimestamp to get the output
try {
String format = "yyyyMMddHHmmss";
String value = "20050225144824";
SimpleDateFormat dformat = new SimpleDateFormat(format);
java.util.Date date;
date = dformat.parse(value);
Timestamp result = new CustomTimestamp(date.getTime());
System.out.println("Result::" + result);
} catch (ParseException e) {
e.printStackTrace();
}

Related

what method can i use to change format 12 hours time to 24 hour time [duplicate]

In my app, I have a requirement to format 12 hours time to 24 hours time. What is the method I have to use?
For example, time like 10:30 AM. How can I convert to 24 hours time in java?

Try this:
import java.text.SimpleDateFormat;
import java.util.Date;
public class Main {
public static void main(String [] args) throws Exception {
SimpleDateFormat displayFormat = new SimpleDateFormat("HH:mm");
SimpleDateFormat parseFormat = new SimpleDateFormat("hh:mm a");
Date date = parseFormat.parse("10:30 PM");
System.out.println(parseFormat.format(date) + " = " + displayFormat.format(date));
}
}
which produces:
10:30 PM = 22:30
See: http://download.oracle.com/javase/1.5.0/docs/api/java/text/SimpleDateFormat.html

java.time
In Java 8 and later it could be done in one line using class java.time.LocalTime.
In the formatting pattern, lowercase hh means 12-hour clock while uppercase HH means 24-hour clock.
Code example:
String result = // Text representing the value of our date-time object.
LocalTime.parse( // Class representing a time-of-day value without a date and without a time zone.
"03:30 PM" , // Your `String` input text.
DateTimeFormatter.ofPattern( // Define a formatting pattern to match your input text.
"hh:mm a" ,
Locale.US // `Locale` determines the human language and cultural norms used in localization. Needed here to translate the `AM` & `PM` value.
) // Returns a `DateTimeFormatter` object.
) // Return a `LocalTime` object.
.format( DateTimeFormatter.ofPattern("HH:mm") ) // Generate text in a specific format. Returns a `String` object.
;
See this code run live at IdeOne.com.
15:30
See Oracle Tutorial.

Assuming that you use SimpleDateFormat implicitly or explicitly, you need to use H instead of h in the format string.
E.g
HH:mm:ss
instead of
hh:mm:ss

12 to 24 hour time conversion and can be reversed if change time formate in output and input SimpleDateFormat class parameter
Test Data Input:
String input = "07:05:45PM";
timeCoversion12to24(input);
output
19:05:45
public static String timeCoversion12to24(String twelveHoursTime) throws ParseException {
//Date/time pattern of input date (12 Hours format - hh used for 12 hours)
DateFormat df = new SimpleDateFormat("hh:mm:ssaa");
//Date/time pattern of desired output date (24 Hours format HH - Used for 24 hours)
DateFormat outputformat = new SimpleDateFormat("HH:mm:ss");
Date date = null;
String output = null;
//Returns Date object
date = df.parse(twelveHoursTime);
//old date format to new date format
output = outputformat.format(date);
System.out.println(output);
return output;
}

SimpleDateFormat parseFormat = new SimpleDateFormat("hh:mm a");
provided by Bart Kiers answer should be replaced with somethig like
SimpleDateFormat parseFormat = new SimpleDateFormat("hh:mm a",Locale.UK);

Try This
public static String convertTo24Hour(String Time) {
DateFormat f1 = new SimpleDateFormat("hh:mm a"); //11:00 pm
Date d = null;
try {
d = f1.parse(Time);
} catch (ParseException e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
DateFormat f2 = new SimpleDateFormat("HH:mm");
String x = f2.format(d); // "23:00"
return x;
}

static String timeConversion(String s)
{
String s1[]=s.split(":");
char c[]=s1[2].toCharArray();
if(s1[2].contains("PM"))
{
int n=Integer.parseInt(s1[0]);
n=n+12;
return n+":"+s1[1]+":"+c[0]+c[1];
}
else``
return s1[0]+":"+s1[1]+":"+c[0]+c[1];
}

It can be done using Java8 LocalTime. Here is the code.
import java.time.LocalTime;
import java.time.format.DateTimeFormatter;
public class TimeConversion {
public String timeConversion(String s) {
LocalTime.parse(s, DateTimeFormatter.ofPattern("hh:mm a"));
}
}
And Here is the test case for the same:
import org.junit.jupiter.api.Assertions;
import org.junit.jupiter.api.Test;
class TimeConversionTest {
#Test
void shouldReturnTimeIn24HrFormat() {
TimeConversion timeConversion = new TimeConversion();
Assertions.assertEquals("22:30", timeConversion.timeConversion("10:30 PM"));
}
}

Using LocalTime in Java 8, LocalTime has many useful methods like getHour() or the getMinute() method,
For example,
LocalTime intime = LocalTime.parse(inputString, DateTimeFormatter.ofPattern("h:m a"));
String outtime = intime.format(DateTimeFormatter.ISO_LOCAL_TIME);
In some cases, First line alone can do the required parsing

This is the extract of code that I have done.
String s="08:10:45";
String[] s1=s.split(":");
int milipmHrs=0;
char[] arr=s1[2].toCharArray();
boolean isFound=s1[2].contains("PM");
if(isFound){
int pmHrs=Integer.parseInt(s1[0]);
milipmHrs=pmHrs+12;
return(milipmHrs+":"+s1[1]+":"+arr[0]+arr[1]);
}
else{
return(s1[0]+":"+s1[1]+":"+arr[0]+arr[1]);
}

import java.text.SimpleDateFormat;
import java.text.DateFormat;
import java.util.Date;
public class Main {
public static void main(String [] args){
try {
DateFormat parseFormat = new SimpleDateFormat("dd-MM-yyyy hh:mm:ss a");
String sDate = "22-01-2019 9:0:0 PM";
Date date = parseFormat.parse(sDate);
SimpleDateFormat displayFormat = new SimpleDateFormat("dd-MM-yyyy HH:mm:ss");
sDate = displayFormat.format(date);
LOGGER.info("The required format : " + sDate);
} catch (Exception e) {}
}
}

Try this to calculate time difference between two times.
first it will convert 12 hours time into 24 hours then it will take diff between two times
String a = "09/06/18 01:55:33 AM";
String b = "07/06/18 05:45:33 PM";
String [] b2 = b.split(" ");
String [] a2 = a.split(" ");
SimpleDateFormat displayFormat = new SimpleDateFormat("HH:mm:ss");
SimpleDateFormat parseFormat = new SimpleDateFormat("hh:mm:ss a");
String time1 = null ;
String time2 = null ;
if ( a.contains("PM") && b.contains("AM")) {
Date date = parseFormat.parse(a2[1]+" PM");
time1 = displayFormat.format(date);
time2 = b2[1];
}else if (b.contains("PM") && a.contains("AM")) {
Date date = parseFormat.parse(a2[1]+" PM");
time1 = a2[1];
time2 = displayFormat.format(date);
}else if (a.contains("PM") && b.contains("PM")){
Date datea = parseFormat.parse(a2[1]+" PM");
Date dateb = parseFormat.parse(b2[1]+" PM");
time1 = displayFormat.format(datea);
time2 = displayFormat.format(dateb);
}
System.out.println(time1);
System.out.println(time2);
SimpleDateFormat format = new SimpleDateFormat("HH:mm:ss");
Date date1 = format.parse(time1);
Date date2 = format.parse(time2);
long difference = date2.getTime() - date1.getTime();
System.out.println(difference);
System.out.println("Duration: "+DurationFormatUtils.formatDuration(difference, "HH:mm"));
For More Details Click Here

I have written a simple utility function.
public static String convert24HourTimeTo12Hour(String timeStr) {
try {
DateFormat inFormat = new SimpleDateFormat( "HH:mm:ss");
DateFormat outFormat = new SimpleDateFormat( "hh:mm a");
Date date = inFormat.parse(timeStr);
return outFormat.format(date);
}catch (Exception e){}
return "";
}

Try this below code,
public static String timeConversion(String s) {
String militaryTime = "";
String hourString = s.substring(0,2);
String timeFormat = s.substring(8,10);
String timeBody = s.substring(2,8);
if (timeFormat.equals("AM")){
if (hourString.equals("12")){
militaryTime = "00" + timeBody;
}else{
militaryTime = hourString + timeBody;
}
}else if (timeFormat.equals("PM")){
if (hourString.equals("12")){
militaryTime = hourString + timeBody;
}else{
int value = Integer.parseInt(hourString) + 12;
militaryTime = String.valueOf(value) + timeBody;
}
}
return militaryTime;
}

Without using library methods
public static String timeConversion(String s) {
String[] timeElements = s.split(":");
if (s.contains("PM")) {
timeElements[0] = getPMHours(timeElements[0]);
} else {
timeElements[0] = getAMHours(timeElements[0]);
}
timeElements[2] = timeElements[2].substring(0,2);
return timeElements[0]+":"+timeElements[1]+":"+timeElements[2];
}
private static String getAMHours(String hour) {
if(Integer.parseInt(hour) == 12) return "00";
return hour;
}
private static String getPMHours(String hour) {
int i = Integer.parseInt(hour);
if(i != 12) return 12+i+"";
return i+"";
}

I was looking for same thing but in number, means from integer xx hour, xx minutes and AM/PM to 24 hour format xx hour and xx minutes, so here what i have done:
private static final int AM = 0;
private static final int PM = 1;
/**
* Based on concept: day start from 00:00AM and ends at 11:59PM,
* afternoon 12 is 12PM, 12:xxAM is basically 00:xxAM
* #param hour12Format
* #param amPm
* #return
*/
private int get24FormatHour(int hour12Format,int amPm){
if(hour12Format==12 && amPm==AM){
hour12Format=0;
}
if(amPm == PM && hour12Format!=12){
hour12Format+=12;
}
return hour12Format;
}`
private int minutesTillMidnight(int hour12Format,int minutes, int amPm){
int hour24Format=get24FormatHour(hour12Format,amPm);
System.out.println("24 Format :"+hour24Format+":"+minutes);
return (hour24Format*60)+minutes;
}

We can solve this by using String Buffer
String s;
static String timeConversion(String s) {
StringBuffer st=new StringBuffer(s);
for(int i=0;i<=st.length();i++){
if(st.charAt(0)=='0' && st.charAt(1)=='1' &&st.charAt(8)=='P' ){
// if(st.charAt(2)=='1'){
// st.replace(1,2,"13");
st.setCharAt(0, '1');
st.setCharAt(1, '3');
}else if(st.charAt(0)=='0' && st.charAt(1)=='2' &&st.charAt(8)=='P' ){
// if(st.charAt(2)=='1'){
// st.replace(1,2,"13");
st.setCharAt(0, '1');
st.setCharAt(1, '4');
}else if(st.charAt(0)=='0' && st.charAt(1)=='3' &&st.charAt(8)=='P' ){
// if(st.charAt(2)=='1'){
// st.replace(1,2,"13");
st.setCharAt(0, '1');
st.setCharAt(1, '5');
}else if(st.charAt(0)=='0' && st.charAt(1)=='4' &&st.charAt(8)=='P' ){
// if(st.charAt(2)=='1'){
// st.replace(1,2,"13");
st.setCharAt(0, '1');
st.setCharAt(1, '6');
}else if(st.charAt(0)=='0' && st.charAt(1)=='5' &&st.charAt(8)=='P' ){
// if(st.charAt(2)=='1'){
// st.replace(1,2,"13");
st.setCharAt(0, '1');
st.setCharAt(1, '7');
}else if(st.charAt(0)=='0' && st.charAt(1)=='6' &&st.charAt(8)=='P' ){
// if(st.charAt(2)=='1'){
// st.replace(1,2,"13");
st.setCharAt(0, '1');
st.setCharAt(1, '8');
}else if(st.charAt(0)=='0' && st.charAt(1)=='7' &&st.charAt(8)=='P' ){
// if(st.charAt(2)=='1'){
// st.replace(1,2,"13");
st.setCharAt(0, '1');
st.setCharAt(1, '9');
}else if(st.charAt(0)=='0' && st.charAt(1)=='8' &&st.charAt(8)=='P' ){
// if(st.charAt(2)=='1'){
// st.replace(1,2,"13");
st.setCharAt(0, '2');
st.setCharAt(1, '0');
}else if(st.charAt(0)=='0' && st.charAt(1)=='9' &&st.charAt(8)=='P' ){
// if(st.charAt(2)=='1'){
// st.replace(1,2,"13");
st.setCharAt(0, '2');
st.setCharAt(1, '1');
}else if(st.charAt(0)=='1' && st.charAt(1)=='0' &&st.charAt(8)=='P' ){
// if(st.charAt(2)=='1'){
// st.replace(1,2,"13");
st.setCharAt(0, '2');
st.setCharAt(1, '2');
}else if(st.charAt(0)=='1' && st.charAt(1)=='1' &&st.charAt(8)=='P' ){
// if(st.charAt(2)=='1'){
// st.replace(1,2,"13");
st.setCharAt(0, '2');
st.setCharAt(1, '3');
}else if(st.charAt(0)=='1' && st.charAt(1)=='2' &&st.charAt(8)=='A' ){
// if(st.charAt(2)=='1'){
// st.replace(1,2,"13");
st.setCharAt(0, '0');
st.setCharAt(1, '0');
}else if(st.charAt(0)=='1' && st.charAt(1)=='2' &&st.charAt(8)=='P' ){
st.setCharAt(0, '1');
st.setCharAt(1, '2');
}
if(st.charAt(8)=='P'){
st.setCharAt(8,' ');
}else if(st.charAt(8)== 'A'){
st.setCharAt(8,' ');
}
if(st.charAt(9)=='M'){
st.setCharAt(9,' ');
}
}
String result=st.toString();
return result;
}

How to proceed to the next iteration of a loop whenever the program fails to read files

I'm creating a program that can read .log files in certain directories and then dumps the data from the .log files into a local database.
However, i noticed in my testing that whenever the program reads the files and i happen to access the files during the test run - the program freezes.
How do i solve this issue?
public static void file(File[] files)
{
try
{
for (File lister : files)
{
System.out.println("HERE " + lister);
in = new FileReader(lister);
br = new BufferedReader(in);
try
{
while ((sCurrentLine = br.readLine()) != null)
{
if (sCurrentLine.contains("Performance"))
{
String[] aCurrentLine = sCurrentLine.split("\\|");
if (aCurrentLine.length >= 6) {
Date date = dateinsert.parse(aCurrentLine[0]);
CurrentTime = dateinsert.format(date);
CurrentFlow = aCurrentLine[2];
CurrentModule = aCurrentLine[5];
CurrentType = aCurrentLine[4];
sCurrentID = aCurrentLine[6];
aCurrentLine = aCurrentLine[6].split("ORDER_ID");
if (aCurrentLine.length >= 2)
{
aCurrentLine[1] = aCurrentLine[1].replace (":", "");
aCurrentLine[1] = aCurrentLine[1].replace (" ", "");
aCurrentLine[1] = aCurrentLine[1].replace ("_", "");
aCurrentLine[1] = aCurrentLine[1].replace ("{", "");
aCurrentLine[1] = aCurrentLine[1].replace ("}", "");
aCurrentLine = aCurrentLine[1].split ("\"");
sCurrentID = aCurrentLine[2];
}
else // Happens when there's no order id
{
sCurrentID = "N/A";
}
cal = Calendar.getInstance();
year = cal.get(Calendar.YEAR);
month = cal.get(Calendar.MONTH);
datenum = cal.get(Calendar.DAY_OF_MONTH);
hour = cal.get(Calendar.HOUR_OF_DAY);
minute = cal.get(Calendar.MINUTE);
second = cal.get(Calendar.SECOND);
if (month<9)
{
month = month + 1;
smonth = "0" + Integer.toString(month);
}
else
{
month = month + 1;
smonth = Integer.toString(month);
}
if (datenum<10)
{
sdatenum = "0" + Integer.toString(datenum);
}
else
{
sdatenum = Integer.toString(datenum);
}
if (hour<10)
{
shour = "0" + Integer.toString(hour);
}
else
{
shour = Integer.toString(hour);
}
if (minute<10)
{
sminute = "0" + Integer.toString(minute);
}
else
{
sminute = Integer.toString(minute);
}
if (second<10)
{
ssecond = "0" + Integer.toString(second);
}
else
{
ssecond = Integer.toString(second);
}
scalendar = Integer.toString(year) + "-" + smonth + "-" + sdatenum + " " + shour + ":" + sminute+ ":" + ssecond;
ls.insertdata(sCurrentID, CurrentTime, CurrentFlow, CurrentModule, CurrentType, scalendar);
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
flag = 0;
}
}

1 - Do you need to worry about the fact that it does not work when the file is open or are you just interested in why it does not work as expected ?
2 - All of the code that you wrote to determine the value for scalendar can be reduced to 2 lines of code :
Format formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String formattedDate = formatter.format(Calendar.getInstance().getTime());
Here is unit test
#Test
public void quickTest() {
Format formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String formattedDate = formatter.format(Calendar.getInstance().getTime());
System.out.println(formattedDate);
}
where the result will look similar to : 2018-03-19 06:42:58

Operator '<' cannot be applied to 'java.lang.String'

i got the system time in a string for example something like "1240".
then i wanted to do something like if the system time was < than 1240,then close the application.
but it gives me the "Operator '<' cannot be applied to java.lang.String!" Error!
My code is :
runOnUiThread(new Runnable() {
public void run() {
try{
TextView txtCurrentTime= (TextView)findViewById(R.id.showtime);
Date dt = new Date();
int hours = dt.getHours();
int minutes = dt.getMinutes();
int mynum = 1240;
String curTime = hours + "" + minutes;
txtCurrentTime.setText(curTime);
if(curTime < mynum ){
System.exit(0);
}
}catch (Exception e) {}
}
});
What's the problem?

try{
SimpleDateFormat format = new SimpleDateFormat("HH:mm:ss");
String str1 = String.valueOf(hours1) + ":" + String.valueOf(minutes1) + ":" + "00";
String str2 = String.valueOf(hours2) + ":" + String.valueOf(minutes2) + ":" + "00";
Date date1 = formatter.parse(str1);
Date date2 = formatter.parse(str2);
if (date1.compareTo(date2)<0)
{
// if date2 > date1
}
}catch (ParseException e1){
e1.printStackTrace();
}
formats for dates
check date/time format as per your requirement from here

< is not defined for a string and an int of course . So you can't use it .
your current time can be calculated like this :
int curTime = 100*hours + minutes;
then you can use < between two integers.
I believe though you must use System Milliseconds which is more usual.

if(hours * 100 + minutes < mynum){
System.exit(0);
}

Converting Youtube Data API V3 video duration to hh:mm:ss format in java?

I am using Youtube data api v3 to get video information like title, views count and duration.The duration value is new to me as it's an ISO8601 date which I need to convert to a readable format like hh:mm:ss. Duration can have the following different values:
PT1S --> 00:01
PT1M --> 01:00
PT1H --> 01:00:00
PT1M1S --> 01:01
PT1H1S --> 01:00:01
PT1H1M1S --> 01:01:01
I could use Joda Time library to parse the value and calculate the duration in seconds but the library is of 500kb in size which will increase the size of my application that I don't want.

look at this code :
private static HashMap<String, String> regexMap = new HashMap<>();
private static String regex2two = "(?<=[^\\d])(\\d)(?=[^\\d])";
private static String two = "0$1";
public static void main(String[] args) {
regexMap.put("PT(\\d\\d)S", "00:$1");
regexMap.put("PT(\\d\\d)M", "$1:00");
regexMap.put("PT(\\d\\d)H", "$1:00:00");
regexMap.put("PT(\\d\\d)M(\\d\\d)S", "$1:$2");
regexMap.put("PT(\\d\\d)H(\\d\\d)S", "$1:00:$2");
regexMap.put("PT(\\d\\d)H(\\d\\d)M", "$1:$2:00");
regexMap.put("PT(\\d\\d)H(\\d\\d)M(\\d\\d)S", "$1:$2:$3");
String[] dates = { "PT1S", "PT1M", "PT1H", "PT1M1S", "PT1H1S", "PT1H1M", "PT1H1M1S", "PT10H1M13S", "PT10H1S", "PT1M11S" };
for (String date : dates) {
String d = date.replaceAll(regex2two, two);
String regex = getRegex(d);
if (regex == null) {
System.out.println(d + ": invalid");
continue;
}
String newDate = d.replaceAll(regex, regexMap.get(regex));
System.out.println(date + " : " +newDate);
}
}
private static String getRegex(String date) {
for (String r : regexMap.keySet())
if (Pattern.matches(r, date))
return r;
return null;
}
The regex2two has been used to add a leading zero0 to 1-digit numbers. you can try this demo.
In the regexMap I'v stored all 7 cases and appropriate regex-replace.

I did by myself
Let's try
import java.text.DateFormat;
import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Date;
import java.util.GregorianCalendar;
import java.util.
public class YouTubeDurationUtils {
/**
*
* #param duration
* #return "01:02:30"
*/
public static String convertYouTubeDuration(String duration) {
String youtubeDuration = duration; //"PT1H2M30S"; // "PT1M13S";
Calendar c = new GregorianCalendar();
try {
DateFormat df = new SimpleDateFormat("'PT'mm'M'ss'S'");
Date d = df.parse(youtubeDuration);
c.setTime(d);
} catch (ParseException e) {
try {
DateFormat df = new SimpleDateFormat("'PT'hh'H'mm'M'ss'S'");
Date d = df.parse(youtubeDuration);
c.setTime(d);
} catch (ParseException e1) {
try {
DateFormat df = new SimpleDateFormat("'PT'ss'S'");
Date d = df.parse(youtubeDuration);
c.setTime(d);
} catch (ParseException e2) {
}
}
}
c.setTimeZone(TimeZone.getDefault());
String time = "";
if ( c.get(Calendar.HOUR) > 0 ) {
if ( String.valueOf(c.get(Calendar.HOUR)).length() == 1 ) {
time += "0" + c.get(Calendar.HOUR);
}
else {
time += c.get(Calendar.HOUR);
}
time += ":";
}
// test minute
if ( String.valueOf(c.get(Calendar.MINUTE)).length() == 1 ) {
time += "0" + c.get(Calendar.MINUTE);
}
else {
time += c.get(Calendar.MINUTE);
}
time += ":";
// test second
if ( String.valueOf(c.get(Calendar.SECOND)).length() == 1 ) {
time += "0" + c.get(Calendar.SECOND);
}
else {
time += c.get(Calendar.SECOND);
}
return time ;
}
}

Had to deal with this problem as well. I had to convert the length to milliseconds, but once you get the secs/mins/hours variables populated you can convert to any format you want:
// Test Value
$vidLength = 'PT1H23M45S';
$secs = '';
$mins = '';
$hours = '';
$inspecting = '';
for($i=(strlen($vidLength)-1); $i>0; $i--){
if(is_numeric($vidLength[$i])){
if($inspecting == 'S'){
$secs = $vidLength[$i].$secs;
}
else if($inspecting == 'M'){
$mins = $vidLength[$i].$mins;
}
else if($inspecting == 'H'){
$hours = $vidLength[$i].$hours;
}
}
else {
$inspecting = $vidLength[$i];
}
}
$lengthInMS = 1000*(($hours*60*60) + ($mins*60) + $secs);

I needed a array of all these converted duration. So I wrote the below as a workaround and also java.time.duration was not working for me, don't know why.
String[] D_uration = new String[10];
while(iteratorSearchResults.hasNext()){String Apiduration1=Apiduration.replace("PT","");
if(Apiduration.indexOf("H")>=0){
String Apiduration2=Apiduration1.replace("H",":");
if(Apiduration.indexOf("M")>=0){
String Apiduration3=Apiduration2.replace("M",":");
if(Apiduration.indexOf("S")>=0){
D_uration[i]=Apiduration3.replace("S","");
}
else{
String Apiduration4=Apiduration2.replace("M",":00");
D_uration[i]=Apiduration4;
}
}
else{
String Apiduration4=Apiduration2.replace(":",":00:");
if(Apiduration.indexOf("S")>=0){
D_uration[i]=Apiduration4.replace("S","");
}
else{
String Apiduration3=Apiduration4.replace(":00:",":00:00");
D_uration[i]=Apiduration3;
}
}
}
else{
if(Apiduration.indexOf("M")>=0){
String Apiduration2=Apiduration1.replace("M",":");
if(Apiduration.indexOf("S")>=0){
D_uration[i]=Apiduration2.replace("S","");
}
else{
String Apiduration4=Apiduration2.replace(":",":00");
D_uration[i]=Apiduration4;
}
}
else{
D_uration[i]=Apiduration1.replace("S","");
}
}
"Apiduration" is returned by the Youtube data Api in ISO8601 format.
Made some edits now i think it should work fine.

how to remove data from hashtable for a particular date

I am trying to remove data from hashtable for a particular date,the hashtable is of type (String,vector).Initially i am checking if hashtable contains the usrDate if yes then i need to remove all the data frm hashtable only for usrDate and add the new data that is listEvents.But the contains from hashtable for other dates should not be deleted.
listEvents.addElement(eventBean);//new data is here
for (int i = 0; i < listEvents.size();i++) {
EventData e = (EventData)listEvents.elementAt(i);
}
//checking if hashtable has given date
if (listUserEvents.containsKey(usrDate)) {
Vector info = (Vector)listUserEvents.get(usrDate);
info.addElement(eventBean);
listUserEvents.put(usrDate,info);
} else {
listUserEvents.put(usrDate,listEvents);
}
i just want to add listEvents to the hashtable for the given date,without affecting the other data in hashtable which has data for some other dates.
private Hashtable getEvents(String usrDate, String timezone) {
try {
listUserEvents = getUserInfo();
listEvents = new Vector();
Calendar calendarLocalEvent = Calendar.getInstance();
// fetches time zone
TimeZone timeZoneEvent = calendarLocalEvent.getTimeZone();
System.out.println("Time Zone first-->"
+ timeZoneEvent.getDefault());
if (timezone.equals(timeZoneEvent.getDefault())) {
;
} else {
TimeZone timeZoneChange = TimeZone.getTimeZone(timezone);
System.out.println("Time Zone change-->" +timeZoneChange);
Device.setTimeZone(timeZoneChange);
}
EventList eventList = (EventList) PIM.getInstance().openPIMList(
PIM.EVENT_LIST, PIM.READ_ONLY);
Enumeration events = eventList.items();
while (events.hasMoreElements()) {
System.out.println("in while");
Event event = (Event) events.nextElement();
if (eventList.isSupportedField(Event.START)
&& event.countValues(Event.START) > 0)
{
long start = event.getDate(Event.START, 0);
SimpleDateFormat sdf = new SimpleDateFormat(
"MMM dd,yyyy HH:mm");
SimpleDateFormat sdf_start = new SimpleDateFormat("HH:mm");
SimpleDateFormat sdf_start_min = new SimpleDateFormat("HH");
String dateString = sdf.formatLocal(start);
String timeString = sdf_start.formatLocal(start);
String hour = sdf_start_min.formatLocal(start);
SimpleDateFormat sdf1 = new SimpleDateFormat("MMM dd,yyyy");
String date = sdf1.formatLocal(start);
System.out.println("dates are :" + date +"user" + usrDate);
if (usrDate.equalsIgnoreCase(date)) {
System.out.println("dates are equal:" +date);
EventData eventBean = new EventData();
if (eventList.isSupportedField(Event.END)
&& event.countValues(Event.END) > 0) {
long end = event.getDate(Event.END, 0);
SimpleDateFormat sdform = new SimpleDateFormat(
"MMM dd, yyyy HH:mm");
SimpleDateFormat sdfTime = new SimpleDateFormat(
"HH:mm");
SimpleDateFormat sdfhr = new SimpleDateFormat("HH");
String dateString1 =sdform.formatLocal(end);
String timeString1 =sdfTime.formatLocal(end);
String hr = sdfhr.formatLocal(end);
eventBean.setStartHr(hour);
eventBean.setEndHr(hr);
eventBean.setStartTime(timeString);
eventBean.setEndTime(timeString1);
eventBean.setStartDate(dateString);
eventBean.setEndDate(dateString1);
// Dialog.alert("equal startdate" + dateString);
// Dialog.alert("equal end date"+ dateString1);
}
if (eventList.isSupportedField(Event.LOCATION)
&& event.countValues(Event.LOCATION) > 0) {
String location = event
.getString(Event.LOCATION, 0);
eventBean.setLocation(location);
// Dialog.alert("equal location"+ location);
}
if (eventList.isSupportedField(Event.SUMMARY)
&& event.countValues(Event.SUMMARY) > 0) {
String subject = event.getString(Event.SUMMARY, 0);
eventBean.setSummary(subject);
// Dialog.alert("equal subject" +subject);
}
eventBean.setUserDate(usrDate);
eventBean.setTimeZone(timezone);
listEvents.addElement(eventBean);
System.out.println("the size bf hashis"
+ listEvents.size());
for (int i = 0; i < listEvents.size();i++) {
EventData e = (EventData)listEvents.elementAt(i);
System.out.println("so thesummary is ::"
+ e.getSummary());
}
// for(int i=0;i<listUserEvents.size();i++){
if (listUserEvents.containsKey(usrDate)) {
// listUserEvents.remove(usrDate);
Vector info = (Vector)listUserEvents.get(usrDate);
System.out.println("the size in getEvents is"
+ info.size());
if(info.contains(usrDate)){
System.out.println("in info");
}
info.addElement(eventBean);
System.out.println("vector size info is"
+ info.size());
listUserEvents.put(usrDate,info);
} else {
System.out.println("in else of getevent" +listEvents.size());
listUserEvents.put(usrDate,listEvents);
}
// }
} else {
// Dialog.alert("not equal");
}
}
}
Device.setTimeZone(timeZoneEvent);
Calendar calendarLocalLastEvent = Calendar.getInstance();
// fetches time zone
TimeZone timeZoneEventLast =calendarLocalLastEvent.getTimeZone();
System.out.println("Time Zone last-->"
+ timeZoneEventLast.getDefault());
} catch (PIMException e) {
// //Dialog.alert(e.getMessage());
}
System.out.println("size in hashtable " + listUserEvents.size());
return listUserEvents;
}

It must be something like this
for(int i = 0; i<listUserEvents.size();i++)
{
if (listUserEvents.containsKey(usrDate)){
listUserEvents.remove(usrDate);
}
}

Here is a simple example of how this works:
Hashtable<String, Integer> numbers = new Hashtable<String, Integer>();
numbers.put("one", 1);
numbers.put("two", 2);
if (numbers.containsKey("two")) {
numbers.put("two", 222);
}
What are you having difficulty at? Moreover what is the type of your Hashtable key? Is it java.util.Date or something else?

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