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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. class RangeData implements Iterable<Data>{
  8.     private Data inicio;
  9.     private Data fim;
  10.  
  11.     public RangeData(Data inicio, Data fim) {
  12.         this.inicio = inicio;
  13.         this.fim = fim;
  14.     }
  15.  
  16.     @Override
  17.     public Iterator<Data> iterator() {
  18.         return new Iterator<Data>() {
  19.             Data corrente = inicio;
  20.             @Override
  21.             public boolean hasNext() {
  22.                 return corrente.menorOuIgual(fim);
  23.             }
  24.  
  25.             @Override
  26.             public Data next() {
  27.                 Data atual = corrente;
  28.                 corrente = corrente.proximoDia();
  29.                 return atual;
  30.             }
  31.         };
  32.     }
  33. }
  34.  
  35. class Data {
  36.     private int dia;
  37.     private int mes;
  38.     private int ano;
  39.  
  40.     public Data(){
  41.  
  42.     }
  43.  
  44.     public Data(int dia, int mes, int ano){
  45.         setData(dia, mes, ano);
  46.     }
  47.  
  48.     public void setData(int dia, int mes, int ano){
  49.         this.dia = dia;
  50.         this.mes = mes;
  51.         this.ano = ano;
  52.     }
  53.  
  54.     public boolean menorOuIgual(Data data) {
  55.         return ano < data.ano || (ano == data.ano &&  mes < data.mes) ||
  56.                 (ano == data.ano && mes == data.mes && dia <= data.dia);
  57.     }
  58.  
  59.     public Data proximoDia(){
  60.         return new Data(dia + 1, mes, ano);
  61.     }
  62.  
  63.     @Override
  64.     public String toString() {
  65.         return String.format("%02d/%02d/%d",dia, mes, ano);
  66.     }
  67. }
  68.  
  69. /* Name of the class has to be "Main" only if the class is public. */
  70. class Ideone
  71. {
  72. 	public static void main (String[] args) throws java.lang.Exception
  73. 	{
  74. 		Data d[] = { new Data(), new Data(), new Data(), new Data() };
  75.  
  76.         d[0].setData( 2, 4, 2016 );
  77.         d[1].setData( 12, 3, 2006 );
  78.         d[2].setData( 3, 3, 2006 );
  79.         d[3].setData( 7, 9, 2015 );
  80.  
  81.         for( Data x : (new RangeData( d[2], d[1] )) )
  82.             System.out.println( x );
  83. 	}
  84. }
Success #stdin #stdout 0.1s 28052KB
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03/03/2006
04/03/2006
05/03/2006
06/03/2006
07/03/2006
08/03/2006
09/03/2006
10/03/2006
11/03/2006
12/03/2006
https://ideone.com/MOTVFL
language:
Java (HotSpot 12)
created:
6 years ago
visibility:
public

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