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  1. import java.text.*;
  2. import java.util.*;
  3.  
  4. class Eveniment {
  5.     private Date dataInceput, dataSfarsit;
  6.     private String nume;
  7.     // Primeste 2 stringuri in format yyyy-MM-dd HH:mm:ss reprezentand data si ora
  8.     // de inceput si de final a evenimentului si inca un string care contine numele
  9.     // cu care apare evenimentul in calendar
  10.     public Eveniment(String dataInceput, String dataSfarsit, String nume) {
  11.         SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  12.         try {
  13.             this.dataInceput = format.parse(dataInceput);
  14.             this.dataSfarsit = format.parse(dataSfarsit);
  15.         } catch (Exception e) {
  16.             System.out.println("Data nu este in formatul cerut!");
  17.         }
  18.         this.nume = nume;
  19.     }
  20.  
  21.     public Date getDataInceput() {
  22.         return dataInceput;
  23.     }
  24.  
  25.     public Date getDataSfarsit() {
  26.         return dataSfarsit;
  27.     }
  28.  
  29.     public String getNume() {
  30.         return nume;
  31.     }
  32. }
  33.  
  34. class EvenimentRecurent extends Eveniment {
  35.     private int numarOre;
  36.  
  37.     EvenimentRecurent(String dataInceput, String dataSfarsit, String nume, int numarOre) {
  38.         super(dataInceput, dataSfarsit, nume);
  39.         this.numarOre = numarOre;
  40.     }
  41.  
  42.     public String urmatorulEveniment(String dataInceput) {
  43.         SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  44.         try {
  45.             Date data = format.parse(dataInceput);//Fri Apr 19 22:46:23 EEST 2019
  46.             Calendar calendar = Calendar.getInstance();
  47.             calendar.setTime(data);
  48.             calendar.add(Calendar.HOUR_OF_DAY, numarOre);
  49.             calendar.set(Calendar.SECOND, 0);
  50.             String dataString = format.format(calendar.getTime());
  51.             System.out.println(dataString);
  52.             return dataString;
  53.         } catch (Exception e) {
  54.             return "Data nu este in formatul cerut!";
  55.         }
  56.     }
  57. }
  58.  
  59. public class Main {
  60.     public static void main(String[] args) {
  61.         EvenimentRecurent er = new EvenimentRecurent("2019-03-09 22:46:00",
  62.                 "2019-03-09 23:00:00", "Scris probleme", 24);
  63.         System.out.println(er.urmatorulEveniment("2019-04-19 22:46:23"));
  64.         // 2019-04-20 22:46:00
  65.     }
  66. }
Success #stdin #stdout 0.18s 59080KB
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2019-04-20 22:46:00
2019-04-20 22:46:00
https://ideone.com/zxkcLl
language:
Java (HotSpot 12)
created:
7 days ago
visibility:
public

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