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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 CD {
  8.     private String banda;
  9.     private String genero;
  10.     public String getBanda(){
  11.         return banda;
  12.     }
  13.     public String getGenero(){
  14.         return genero;   
  15.     }
  16.     public void setBanda(String banda){
  17.         this.banda=banda;
  18.     }
  19.     public void setGenero(String genero){
  20.         this.genero=genero;
  21.     }
  22. }
  23.  
  24. class Sistema {
  25.     private ArrayList<CD> cds;
  26.     public Sistema() {
  27.         cds = new ArrayList();
  28.     }     
  29.     public void adicionadoCd(CD cd){
  30.         this.cds.add(cd);     
  31.     }
  32.     public void removerCd(CD cd){
  33.         this.cds.remove(cd);
  34.     }
  35.  
  36.     @Override
  37.     public String toString() {
  38.         //return "Sistema{" + "cds=" + cds + '}';
  39.         String values = "";
  40.         for(CD cd: cds) {
  41.             values += cd.getBanda() + " " + cd.getGenero();
  42.             values += "\n";
  43.         }
  44.         return values;
  45.     }      
  46. }
  47.  
  48. /* Name of the class has to be "Main" only if the class is public. */
  49. class Ideone
  50. {
  51. 	public static void main (String[] args) throws java.lang.Exception
  52. 	{
  53. 		Sistema sis = new Sistema();    
  54.  
  55.         CD reginaldo = new CD();
  56.         reginaldo.setBanda("Iron Maiden");
  57.         reginaldo.setGenero("Rock");
  58.  
  59.         CD mj = new CD();
  60.         mj.setBanda("Jakcson Five");
  61.         mj.setGenero("Pop");
  62.  
  63.         sis.adicionadoCd(reginaldo);
  64.         sis.adicionadoCd(mj);
  65.  
  66.  
  67.  
  68.         System.out.println(sis.toString());
  69. 	}
  70. }
Success #stdin #stdout 0.1s 320320KB
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Iron Maiden Rock
Jakcson Five Pop
https://ideone.com/f9mQyp
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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