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  1.  
  2.  
  3. import java.text.*;
  4. import java.util.*;
  5.  
  6. class Eveniment {
  7.     private Date dataInceput, dataSfarsit;
  8.     private String nume;
  9.     // Primeste 2 stringuri in format yyyy-MM-dd HH:mm:ss reprezentand data si ora
  10.     // de inceput si de final a evenimentului si inca un string care contine numele
  11.     // cu care apare evenimentul in calendar
  12.     public Eveniment(String dataInceput, String dataSfarsit, String nume) {
  13.         SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  14.         try {
  15.             this.dataInceput = format.parse(dataInceput);
  16.             this.dataSfarsit = format.parse(dataSfarsit);
  17.         } catch (Exception e) {
  18.             System.out.println("Data nu este in formatul cerut!");
  19.         }
  20.     }
  21.  
  22.     public Date getDataInceput() {
  23.         return dataInceput;
  24.     }
  25.  
  26.     public Date getDataSfarsit() {
  27.         return dataSfarsit;
  28.     }
  29.  
  30.     public String getNume() {
  31.         return nume;
  32.     }
  33. }
  34.  
  35. class EvenimentRecurent extends Eveniment {
  36.     public static final long HOUR_IN_MSEC = 3600000;
  37.     private int numarOre;
  38.  
  39.     public EvenimentRecurent(String dataInceput, String dataSfarsit, String nume, int numarOre) {
  40.         super(dataInceput, dataSfarsit, nume);
  41.         this.numarOre = numarOre;
  42.     }
  43.  
  44.     public String urmatorulEveniment(String dataEveniment) {
  45.         SimpleDateFormat formatRecurent = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  46.         Date timpCurent = getDataInceput();
  47.         try {
  48.             Date timpSpecific = formatRecurent.parse(dataEveniment);
  49.             timpCurent.setTime(timpCurent.getTime() + (timpSpecific.getTime() - timpCurent.getTime()) / (numarOre * HOUR_IN_MSEC) * numarOre * HOUR_IN_MSEC);
  50.             if (timpCurent.before(timpSpecific)) {
  51.                 timpCurent.setTime(timpCurent.getTime() + numarOre * HOUR_IN_MSEC);
  52.             }
  53.         } catch (Exception e) {
  54.             System.out.println("Data nu este in formatul cerut!");
  55.             return null;
  56.         }
  57.         return formatRecurent.format(timpCurent).toString();
  58.     }
  59. }
  60.  
  61. public class Main {
  62.     public static void main(String[] args) {
  63.         EvenimentRecurent er = new EvenimentRecurent("2019-03-09 22:46:00",
  64.                 "2019-03-09 23:00:00", "Scris probleme", 24);
  65.         System.out.println(er.urmatorulEveniment("2019-04-19 22:46:23"));
  66.     }
  67. }
Success #stdin #stdout 0.19s 57052KB
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2019-04-20 22:46:00
https://ideone.com/A6cXcV
language:
Java (HotSpot 12)
created:
4 hours ago
visibility:
public

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