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  1. class Date {
  2.     private int dMonth;
  3.     private int dDay;
  4.     private int dYear;
  5.  
  6.     // Constructors
  7.     public Date() {
  8.         this(1, 1, 2000); // Default date
  9.     }
  10.  
  11.     public Date(int month, int day, int year) {
  12.         this.dMonth = month;
  13.         this.dDay = day;
  14.         this.dYear = year;
  15.     }
  16.  
  17.     // Setter
  18.     public void setDate(int month, int day, int year) {
  19.         this.dMonth = month;
  20.         this.dDay = day;
  21.         this.dYear = year;
  22.     }
  23.  
  24.     // Getters
  25.     public int getMonth() { return dMonth; }
  26.     public int getDay() { return dDay; }
  27.     public int getYear() { return dYear; }
  28.  
  29.     // toString method
  30.     public String toString() {
  31.         return dMonth + "/" + dDay + "/" + dYear;
  32.     }
  33. }
  34. class PersonalInfo {
  35.     private String name;
  36.     private Date bDay; // Composition
  37.     private int personID;
  38.  
  39.     // Constructors
  40.     public PersonalInfo() {
  41.         this("Unknown", 1, 1, 2000, 0);
  42.     }
  43.  
  44.     public PersonalInfo(String name, int month, int day, int year, int personID) {
  45.         this.name = name;
  46.         this.bDay = new Date(month, day, year);
  47.         this.personID = personID;
  48.     }
  49.  
  50.     // Setter
  51.     public void setPersonalInfo(String name, int month, int day, int year, int personID) {
  52.         this.name = name;
  53.         this.bDay.setDate(month, day, year);
  54.         this.personID = personID;
  55.     }
  56.  
  57.     // toString method
  58.     public String toString() {
  59.         return "Name: " + name + "\nBirth Date: " + bDay + "\nID: " + personID;
  60.     }
  61. }
  62. public class Main {
  63.     public static void main(String[] args) {
  64.         PersonalInfo person = new PersonalInfo("Alice", 12, 25, 1998, 1001);
  65.         System.out.println(person);
  66.     }
  67. }
  68.  
Success #stdin #stdout 0.2s 61056KB
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Name: Alice
Birth Date: 12/25/1998
ID: 1001
https://ideone.com/jFU9Id
language:
Java (HotSpot 12)
created:
10 days ago
visibility:
public

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