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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 dataEveniment = getDataInceput();
  46. Date dataUrmEv = format.parse(dataInceput);//2019-04-19 22:46:23
  47. String dataString1 = format.format(dataEveniment);
  48. if (dataEveniment.before(dataUrmEv)) {//2019-04-19 22:46:00
  49. while (dataEveniment.before(dataUrmEv)) {
  50. Calendar calendar = Calendar.getInstance();
  51. calendar.setTime(dataEveniment);
  52. calendar.add(Calendar.HOUR_OF_DAY, numarOre);
  53. dataEveniment = calendar.getTime();
  54. dataString1 = format.format(dataEveniment);
  55. }
  56. }
  57. if (dataEveniment.after(dataUrmEv)) {
  58. Calendar calendar = Calendar.getInstance();
  59. calendar.setTime(dataEveniment);
  60. calendar.add(Calendar.HOUR_OF_DAY, numarOre);
  61. dataEveniment = calendar.getTime();
  62. dataString1 = format.format(dataEveniment);
  63. return dataString1;
  64. }
  65. if (dataEveniment.compareTo(dataUrmEv) == 0) {
  66. return dataInceput;
  67. }
  68.  
  69. } catch (Exception e) {
  70. return "Data nu este in formatul cerut!";
  71. }
  72. return "0";
  73. }
  74.  
  75. }
  76.  
  77. public class Main {
  78. public static void main(String[] args) {
  79. EvenimentRecurent er = new EvenimentRecurent("2019-03-09 22:46:00",
  80. "2019-03-09 23:00:00", "Scris probleme", 24);
  81. //System.out.println(er.urmatorulEveniment("2019-04-19 22:46:23"));
  82. System.out.println(er.urmatorulEveniment("2019-03-08 22:46:00"));//nok
  83. //System.out.println(er.urmatorulEveniment("2019-03-09 22:46:00"));
  84. // 2019-04-20 22:46:00
  85. }
  86. }
Success #stdin #stdout 0.19s 57044KB
stdin
Standard input is empty
stdout
2019-03-10 22:46:00