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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.  
  8.   public Eveniment(String dataInceput, String dataSfarsit, String nume) {
  9.     SimpleDateFormat format = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  10.     try {
  11.       this.dataInceput = format.parse(dataInceput);
  12.       this.dataSfarsit = format.parse(dataSfarsit);
  13.     } catch (Exception e) {
  14.       System.out.println("Data nu este in formatul cerut!");
  15.     }
  16.     this.nume = nume;
  17.   }
  18.  
  19.   public Date getDataInceput() {
  20.     return dataInceput;
  21.   }
  22.  
  23.   public Date getDataSfarsit() {
  24.     return dataSfarsit;
  25.   }
  26.  
  27.   public String getNume() {
  28.     return nume;
  29.   }
  30. }
  31.  
  32. class EvenimentRecurent extends Eveniment{
  33. 	private int numarOre;
  34.  
  35. 	EvenimentRecurent(String dataInceput, String dataSfarsit, String nume, int numarOre){
  36. 		super (dataInceput, dataSfarsit, nume);
  37. 		this.numarOre = numarOre;
  38. 	}
  39.  
  40. 	public String urmatorulEveniment(String nextEvent){
  41. 		SimpleDateFormat formatter = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
  42.         try {
  43.         	Date initialDate = formatter.parse(nextEvent);
  44.         	Date startDate = getDataInceput();
  45.  
  46.         	long startingTime = startDate.getTime();
  47.         	long nextEventTime = initialDate.getTime();
  48.             long interval = numarOre * 60L * 60L * 1000L;
  49.  
  50.             if(nextEventTime <= startingTime){
  51.             	return formatter.format(startingTime);
  52.             }
  53.  
  54.             long dif = nextEventTime - startingTime;
  55.             long nrLoops = (dif + interval - 1) / interval;
  56.             long newEventTime = startingTime + nrLoops * interval;
  57.  
  58. 		    return formatter.format(new Date(newEventTime));
  59.         } catch (Exception e) {
  60.         return "Data nu este in formatul cerut!";
  61.         }
  62. 	}
  63. }
  64.  
  65. public class Main {
  66.   public static void main(String[] args) {
  67.     EvenimentRecurent er = new EvenimentRecurent("2019-03-09 22:46:00",
  68.       "2019-03-09 23:00:00", "Scris probleme", 25);
  69.     System.out.println(er.urmatorulEveniment("2019-04-19 22:46:23"));
  70.     System.out.println(er.urmatorulEveniment("2019-04-25 22:46:23"));
  71.   }
  72. }
Success #stdin #stdout 0.19s 59164KB
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stdin 
Standard input is empty
stdout 
2019-04-20 14:46:00
2019-04-26 20:46:00
https://ideone.com/5ytv52
language:
Java (HotSpot 12)
created:
10 days ago
visibility:
public

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