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262 lines
7.7 KiB
262 lines
7.7 KiB
package com.gmail.develop.jcant;
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import java.text.ParseException;
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import java.text.SimpleDateFormat;
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import java.util.Calendar;
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import java.util.Date;
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import java.util.concurrent.TimeUnit;
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public class JDate {
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private static String defaultDateFormat = "dd-MM-yyyy";
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private static String defaultTimeFormat = "HH:mm:ss";
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public static void setDefaultDateFormat(String format) {
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defaultDateFormat = format;
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}
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public static String getDefaultDateFormat() {
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return defaultDateFormat;
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}
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public static void setDefaultTimeFormat(String format) {
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defaultTimeFormat = format;
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}
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public static String getDefaultTimeFormat() {
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return defaultTimeFormat;
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}
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/* --- Date operations --- */
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public static Date getDate(String date) {
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SimpleDateFormat sdf = new SimpleDateFormat(defaultDateFormat);
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Date result = null;
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try {
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result = sdf.parse(date);
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} catch (ParseException e) {
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System.err.println("Error getting quick date!");
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}
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return result;
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}
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public static Date getDate(String date, String time){
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return setTime(getDate(date), time);
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}
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public static String getDate(Date date) {
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SimpleDateFormat sdf = new SimpleDateFormat(defaultDateFormat);
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String result = sdf.format(date);
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return result;
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}
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public static Date setDate(Date date, String set){
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if (date == null) {
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throw new IllegalArgumentException();
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}
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Calendar our = Calendar.getInstance();
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Calendar setter = Calendar.getInstance();
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our.setTime(date);
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SimpleDateFormat sdf = new SimpleDateFormat(defaultDateFormat);
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try {
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setter.setTime(sdf.parse(set));
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} catch (ParseException e) {
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e.printStackTrace();
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}
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our.set(setter.get(Calendar.YEAR), setter.get(Calendar.MONTH), setter.get(Calendar.DAY_OF_MONTH));
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return our.getTime();
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}
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public static Date setDate(Date date, int day, int month, int year){
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if ((date == null)||
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(day > 31)||(day < 1)||
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(month > 12)||(month < 1)) {
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throw new IllegalArgumentException();
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}
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Calendar our = Calendar.getInstance();
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our.setTime(date);
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our.set(Calendar.DAY_OF_MONTH, day);
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our.set(Calendar.MONTH, month);
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our.set(Calendar.YEAR, year);
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return our.getTime();
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}
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/* --- Time operations --- */
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public static String getTime(Date date) {
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SimpleDateFormat sdf = new SimpleDateFormat(defaultTimeFormat);
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String result = sdf.format(date);
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return result;
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}
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public static Date setTime(Date date, String set){
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if (date == null) {
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throw new IllegalArgumentException();
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}
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Calendar our = Calendar.getInstance();
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Calendar setter = Calendar.getInstance();
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our.setTime(date);
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SimpleDateFormat sdf = new SimpleDateFormat(defaultTimeFormat);
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try {
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setter.setTime(sdf.parse(set));
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} catch (ParseException e) {
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e.printStackTrace();
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}
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our.set(Calendar.HOUR_OF_DAY, setter.get(Calendar.HOUR_OF_DAY));
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our.set(Calendar.MINUTE, setter.get(Calendar.MINUTE));
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our.set(Calendar.SECOND, 0);
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return our.getTime();
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}
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public static Date setTime(Date date, int hours, int minutes, int seconds){
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if ((date == null)||
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(hours > 23)||(hours < 0)||
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(minutes > 59)||(minutes < 0)||
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(seconds > 59)||(seconds < 0)) {
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throw new IllegalArgumentException();
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}
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Calendar our = Calendar.getInstance();
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our.setTime(date);
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our.set(Calendar.HOUR_OF_DAY, hours);
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our.set(Calendar.MINUTE, minutes);
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our.set(Calendar.SECOND, seconds);
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return our.getTime();
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}
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public static Date nullTime(Date date){
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if (date == null) {
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throw new IllegalArgumentException();
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}
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Calendar our = Calendar.getInstance();
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our.setTime(date);
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our.set(Calendar.HOUR_OF_DAY, 0);
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our.set(Calendar.MINUTE, 0);
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our.set(Calendar.SECOND, 0);
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our.set(Calendar.MILLISECOND, 0);
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return our.getTime();
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}
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public static int getHours(Date date) {
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Calendar day = Calendar.getInstance();
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day.setTime(date);
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return day.get(Calendar.HOUR_OF_DAY);
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}
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public static int getMinutes(Date date) {
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Calendar day = Calendar.getInstance();
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day.setTime(date);
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return day.get(Calendar.MINUTE);
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}
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public static int getSeconds(Date date) {
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Calendar day = Calendar.getInstance();
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day.setTime(date);
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return day.get(Calendar.SECOND);
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}
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public static Date incHours(Date date, int hours) {
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Calendar day = Calendar.getInstance();
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day.setTime(date);
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day.add(Calendar.HOUR_OF_DAY, hours);
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return day.getTime();
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}
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public static Date incMinutes(Date date, int minutes) {
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Calendar day = Calendar.getInstance();
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day.setTime(date);
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day.add(Calendar.MINUTE, minutes);
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return day.getTime();
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}
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public static Date incSeconds(Date date, int seconds) {
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Calendar day = Calendar.getInstance();
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day.setTime(date);
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day.add(Calendar.SECOND, seconds);
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return day.getTime();
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}
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/* --- Compare operations --- */
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public static long getDifferenceDays(Date from, Date to) {
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long msDiff = to.getTime() - from.getTime();
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long diff = TimeUnit.DAYS.convert(msDiff, TimeUnit.MILLISECONDS);
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return diff;
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}
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public static int getDifferenceYears(Date from, Date to) {
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Calendar dayFrom = Calendar.getInstance();
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dayFrom.setTime(from);
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Calendar dayTo = Calendar.getInstance();
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dayTo.setTime(to);
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int diff = dayTo.get(Calendar.YEAR) - dayFrom.get(Calendar.YEAR);
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dayTo.set(Calendar.YEAR, dayFrom.get(Calendar.YEAR));
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if (dayFrom.compareTo(dayTo) >= 0) {
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diff--;
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}
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return diff;
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}
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/* --- Date operations with parts--- */
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// 1 - Moday, 2 - Tuesday, ... 7 - Sunday
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public static int getWeekDay(Date date) {
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Calendar day = Calendar.getInstance();
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day.setTime(date);
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return day.get(Calendar.DAY_OF_WEEK);
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}
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public static int getDay(Date date) {
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Calendar day = Calendar.getInstance();
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day.setTime(date);
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return day.get(Calendar.DAY_OF_MONTH);
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}
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// 0-January, 1-February, ... 11-December
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public static int getMonth(Date date) {
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Calendar day = Calendar.getInstance();
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day.setTime(date);
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return day.get(Calendar.MONTH);
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}
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// human-like month numeration
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public static int getCorrectMonth(Date date) {
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return getMonth(date) + 1;
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}
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public static int getYear(Date date) {
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Calendar day = Calendar.getInstance();
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day.setTime(date);
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return day.get(Calendar.YEAR);
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}
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public static Date incDay(Date date, int days) {
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Calendar day = Calendar.getInstance();
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day.setTime(date);
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day.add(Calendar.DAY_OF_MONTH, days);
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return day.getTime();
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}
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public static Date incMonth(Date date, int months) {
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Calendar day = Calendar.getInstance();
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day.setTime(date);
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day.add(Calendar.MONTH, months);
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return day.getTime();
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}
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public static Date incYear(Date date, int years) {
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Calendar day = Calendar.getInstance();
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day.setTime(date);
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day.add(Calendar.YEAR, years);
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return day.getTime();
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}
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//this is comment
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}
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