vault backup: 2024-04-12 09:39:31
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<!-- Generated by javadoc (build 1.8.0_402) on Thu Mar 21 22:06:18 GMT 2024 -->
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DateUtil
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<META NAME="date" CONTENT="2024-03-21">
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<!-- ======== START OF CLASS DATA ======== -->
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<H2>
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Class DateUtil</H2>
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<PRE>
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java.lang.Object
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<IMG SRC="./resources/inherit.gif" ALT="extended by "><B>DateUtil</B>
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</PRE>
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<HR>
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<DL>
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<DT><PRE>public class <B>DateUtil</B><DT>extends java.lang.Object</DL>
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</PRE>
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<P>
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A class DateUtil with the following methods for dealing with dates.
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public static String convertDateToLongString(Date date)
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public static String convertDateToShortString(Date date)
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public static Date convertStringToDate(String dateString)
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public static int daysBetween(Date startDate, Date endDate)
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public static Date incrementDate(Date date, int noOfDays)
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public static boolean isLeapYear(int year)
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public static boolean isValidDateString(String dateString)
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public static Date nextDate(Date date)
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<P>
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<P>
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<DL>
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<DT><B>Author:</B></DT>
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<DD>D E Newton</DD>
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</DL>
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<HR>
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<P>
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<!-- =========== FIELD SUMMARY =========== -->
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<A NAME="field_summary"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
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<B>Field Summary</B></FONT></TH>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static java.text.SimpleDateFormat</CODE></FONT></TD>
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<TD><CODE><B><A HREF="DateUtil.html#dateFormatter">dateFormatter</A></B></CODE>
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<BR>
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</TD>
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</TR>
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</TABLE>
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<!-- ======== CONSTRUCTOR SUMMARY ======== -->
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<A NAME="constructor_summary"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
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<B>Constructor Summary</B></FONT></TH>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD><CODE><B><A HREF="DateUtil.html#DateUtil()">DateUtil</A></B>()</CODE>
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<BR>
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</TD>
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</TR>
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</TABLE>
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<!-- ========== METHOD SUMMARY =========== -->
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<A NAME="method_summary"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<TH ALIGN="left" COLSPAN="2"><FONT SIZE="+2">
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<B>Method Summary</B></FONT></TH>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static java.lang.String</CODE></FONT></TD>
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<TD><CODE><B><A HREF="DateUtil.html#convertDateToLongString(java.util.Date)">convertDateToLongString</A></B>(java.util.Date date)</CODE>
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<BR>
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Converts a Date object to a corresponding String in
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the long date pattern style "Saturday, 25 March 2023".</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static java.lang.String</CODE></FONT></TD>
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<TD><CODE><B><A HREF="DateUtil.html#convertDateToShortString(java.util.Date)">convertDateToShortString</A></B>(java.util.Date date)</CODE>
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<BR>
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Converts a Date object to a corresponding String in
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the short date pattern style "25-03-2023".</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static java.util.Date</CODE></FONT></TD>
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<TD><CODE><B><A HREF="DateUtil.html#convertStringToDate(java.lang.String)">convertStringToDate</A></B>(java.lang.String dateString)</CODE>
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<BR>
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Converts a string in the short date pattern style "25-03-2023"
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to a corresponding Date object.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static int</CODE></FONT></TD>
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<TD><CODE><B><A HREF="DateUtil.html#daysBetween(java.util.Date, java.util.Date)">daysBetween</A></B>(java.util.Date startDate,
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java.util.Date endDate)</CODE>
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<BR>
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Calculates the number of days between two given dates, startDate and endDate.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static java.util.Date</CODE></FONT></TD>
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<TD><CODE><B><A HREF="DateUtil.html#incrementDate(java.util.Date, int)">incrementDate</A></B>(java.util.Date date,
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int noOfDays)</CODE>
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<BR>
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Given date, a Date object, and noOfDays, an int, the method returns
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a Date object corresponding to noOfDays later than date.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static boolean</CODE></FONT></TD>
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<TD><CODE><B><A HREF="DateUtil.html#isLeapYear(int)">isLeapYear</A></B>(int year)</CODE>
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<BR>
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Given year, an int, the method checks to see if the year
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is a leap year.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static boolean</CODE></FONT></TD>
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<TD><CODE><B><A HREF="DateUtil.html#isValidDateString(java.lang.String)">isValidDateString</A></B>(java.lang.String dateString)</CODE>
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<BR>
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Given dateString, a String, the method checks to see if string
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corresponds to a valid shortDatePattern.</TD>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD ALIGN="right" VALIGN="top" WIDTH="1%"><FONT SIZE="-1">
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<CODE>static java.util.Date</CODE></FONT></TD>
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<TD><CODE><B><A HREF="DateUtil.html#nextDate(java.util.Date)">nextDate</A></B>(java.util.Date date)</CODE>
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<BR>
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Given date, a Date object, the method returns
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a Date object corresponding to the next day.</TD>
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</TR>
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</TABLE>
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<A NAME="methods_inherited_from_class_java.lang.Object"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#EEEEFF" CLASS="TableSubHeadingColor">
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<TH ALIGN="left"><B>Methods inherited from class java.lang.Object</B></TH>
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</TR>
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<TR BGCOLOR="white" CLASS="TableRowColor">
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<TD><CODE>clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait</CODE></TD>
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</TR>
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</TABLE>
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<P>
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<!-- ============ FIELD DETAIL =========== -->
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<A NAME="field_detail"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
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<B>Field Detail</B></FONT></TH>
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</TR>
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</TABLE>
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<A NAME="dateFormatter"><!-- --></A><H3>
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dateFormatter</H3>
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<PRE>
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public static java.text.SimpleDateFormat <B>dateFormatter</B></PRE>
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<DL>
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<DL>
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</DL>
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</DL>
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<!-- ========= CONSTRUCTOR DETAIL ======== -->
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<A NAME="constructor_detail"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
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<B>Constructor Detail</B></FONT></TH>
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</TR>
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</TABLE>
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<A NAME="DateUtil()"><!-- --></A><H3>
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DateUtil</H3>
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<PRE>
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public <B>DateUtil</B>()</PRE>
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<DL>
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</DL>
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<!-- ============ METHOD DETAIL ========== -->
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<A NAME="method_detail"><!-- --></A>
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<TABLE BORDER="1" WIDTH="100%" CELLPADDING="3" CELLSPACING="0" SUMMARY="">
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<TR BGCOLOR="#CCCCFF" CLASS="TableHeadingColor">
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<TH ALIGN="left" COLSPAN="1"><FONT SIZE="+2">
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<B>Method Detail</B></FONT></TH>
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</TR>
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</TABLE>
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<A NAME="convertDateToLongString(java.util.Date)"><!-- --></A><H3>
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convertDateToLongString</H3>
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<PRE>
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public static java.lang.String <B>convertDateToLongString</B>(java.util.Date date)</PRE>
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<DL>
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<DD>Converts a Date object to a corresponding String in
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the long date pattern style "Saturday, 25 March 2023".
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<P>
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<DD><DL>
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<DT><B>Parameters:</B><DD><CODE>date</CODE> - a Date object
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<DT><B>Returns:</B><DD>a String, containing a long date pattern</DL>
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</DD>
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</DL>
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<HR>
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<A NAME="convertDateToShortString(java.util.Date)"><!-- --></A><H3>
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convertDateToShortString</H3>
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<PRE>
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public static java.lang.String <B>convertDateToShortString</B>(java.util.Date date)</PRE>
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<DL>
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<DD>Converts a Date object to a corresponding String in
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the short date pattern style "25-03-2023".
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<P>
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<DD><DL>
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<DT><B>Parameters:</B><DD><CODE>date</CODE> - a Date object
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<DT><B>Returns:</B><DD>a String, containing a short date pattern</DL>
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</DD>
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</DL>
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<HR>
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<A NAME="convertStringToDate(java.lang.String)"><!-- --></A><H3>
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convertStringToDate</H3>
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<PRE>
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public static java.util.Date <B>convertStringToDate</B>(java.lang.String dateString)</PRE>
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<DL>
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<DD>Converts a string in the short date pattern style "25-03-2023"
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to a corresponding Date object.
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Any leading or trailing spaces are first removed from the date string.
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The String parameter that represent a date as a string must be in the
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format dd-mm-yyy (e.g. 25-03-2023 or 25-3-2023) where dd represents
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one or two digits representing the day in the month, similarly for
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mm representing the month in the year and yyyy represents the four
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digits for the year.
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A RuntimeException is thrown if the date string is not recognised as
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a valid date. Such exceptions do not need to be caught or thrown as
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they are unchecked exceptions, but can be caught if necessary.
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<P>
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<DD><DL>
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<DT><B>Parameters:</B><DD><CODE>dateString</CODE> - a Date object
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<DT><B>Returns:</B><DD>the Date object</DL>
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</DD>
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</DL>
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<HR>
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<A NAME="daysBetween(java.util.Date, java.util.Date)"><!-- --></A><H3>
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daysBetween</H3>
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<PRE>
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public static int <B>daysBetween</B>(java.util.Date startDate,
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java.util.Date endDate)</PRE>
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<DL>
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<DD>Calculates the number of days between two given dates, startDate and endDate.
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If startDate is after endDate then the number of days returned will be negative.
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<P>
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<DD><DL>
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<DT><B>Parameters:</B><DD><CODE>startDate</CODE> - a Date object<DD><CODE>endDate</CODE> - a Date object
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<DT><B>Returns:</B><DD>an int, number of days between the dates</DL>
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</DD>
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</DL>
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<HR>
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<A NAME="incrementDate(java.util.Date, int)"><!-- --></A><H3>
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incrementDate</H3>
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<PRE>
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public static java.util.Date <B>incrementDate</B>(java.util.Date date,
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int noOfDays)</PRE>
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<DL>
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<DD>Given date, a Date object, and noOfDays, an int, the method returns
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a Date object corresponding to noOfDays later than date.
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If noOfDays is negative, the resulting Date object will be before date.
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<P>
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<DD><DL>
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<DT><B>Parameters:</B><DD><CODE>date</CODE> - a Date object<DD><CODE>noOfDays</CODE> - an int
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<DT><B>Returns:</B><DD>a Date</DL>
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</DD>
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</DL>
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<HR>
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<A NAME="isLeapYear(int)"><!-- --></A><H3>
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isLeapYear</H3>
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<PRE>
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public static boolean <B>isLeapYear</B>(int year)</PRE>
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<DL>
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<DD>Given year, an int, the method checks to see if the year
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is a leap year.
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<P>
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<DD><DL>
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<DT><B>Parameters:</B><DD><CODE>year,</CODE> - an int
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<DT><B>Returns:</B><DD>a boolean, true only if the year is a leap year.</DL>
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</DD>
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</DL>
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<HR>
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<A NAME="isValidDateString(java.lang.String)"><!-- --></A><H3>
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isValidDateString</H3>
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<PRE>
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public static boolean <B>isValidDateString</B>(java.lang.String dateString)</PRE>
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<DL>
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<DD>Given dateString, a String, the method checks to see if string
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corresponds to a valid shortDatePattern.
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<P>
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<DD><DL>
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<DT><B>Parameters:</B><DD><CODE>dateString,</CODE> - a String
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<DT><B>Returns:</B><DD>a boolean, true only if the dateString is a valid pattern</DL>
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</DD>
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</DL>
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<HR>
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<A NAME="nextDate(java.util.Date)"><!-- --></A><H3>
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nextDate</H3>
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<PRE>
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public static java.util.Date <B>nextDate</B>(java.util.Date date)</PRE>
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<DL>
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<DD>Given date, a Date object, the method returns
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a Date object corresponding to the next day.
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<P>
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<DD><DL>
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<DT><B>Parameters:</B><DD><CODE>noOfDays</CODE> - an int
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<DT><B>Returns:</B><DD>a Date</DL>
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</DD>
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</DL>
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<!-- ========= END OF CLASS DATA ========= -->
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<HR>
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<HR>
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</BODY>
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</HTML>
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