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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. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public static void main (String[] args) throws java.lang.Exception
  11. 	{
  12. 		Student[] students = new Student[5];
  13.  
  14.         students[0] = new Student("Andrey","Kosyak","in-73");
  15.         students[1] = new Student("Daniil","Shilov","in-73");
  16.         students[2] = new Student("Alexandr","Grinenko","in-73");
  17.         students[3] = new Student("Yuriy","Svityuk","in-73");
  18.         students[4] = new Student("Maxim","Mazhuga","in-73");
  19.  
  20.         for(int i = 0; i < 5; i++){
  21.             System.out.println(students[i].getId() + " " + students[i].getName() + " " + students[i].getSurname() + " " + students[i].getGroup());
  22.             for(int j = 0; j < 5; j++){
  23.                 System.out.println(students[j].getSubjects());
  24.             }
  25.         }
  26. 	}
  27. }
  28.  
  29. public class Student
  30. {
  31. 	private int id;
  32.     private static int nextId = 1;
  33.     private String name;
  34.     private String surname;
  35.     private String group;
  36.     private Subject [] subjects;
  37.  
  38.     //getters
  39.     public int getId(){
  40.         return id;
  41.     }
  42.     public int getNextId(){
  43.         return nextId;
  44.     }
  45.     public String getName(){
  46.         return name;
  47.     }
  48.     public String getSurname(){
  49.         return surname;
  50.     }
  51.     public String getGroup(){
  52.         return group;
  53.     }
  54.     public Subject[] getSubjects(){
  55.         return subjects;
  56.     }
  57.  
  58.     //setters
  59.     public void setId(int id){
  60.         this.id=id;
  61.     }
  62.     public void setNextId(int nextId){
  63.         this.nextId=nextId;
  64.     }
  65.     public void setName(String name){
  66.         this.name=name;
  67.     }
  68.     public void setSurname(String surname){
  69.         this.surname=surname;
  70.     }
  71.     public void setGroup(String group){
  72.         this.group=group;
  73.     }
  74.     public void setSubject(Subject[] subjects) {
  75.         this.subjects = subjects;
  76.     }
  77.  
  78.     //constructor
  79.     public Student(String name, String surname, String group){
  80.         this.id = nextId++;
  81.         this.name = name;
  82.         this.surname = surname;
  83.         this.group = group;
  84.         this.subjects = new Subject[5];
  85.         for(int i = 0; i < this.subjects.length; i++){
  86.             this.subjects[i] = new Subject();
  87.         }
  88.     }	
  89. }
  90. public class Subject {
  91.     private String nameSubject;
  92.     private float mark;
  93.     private boolean passed;
  94.  
  95.     String[] nameSubjects = new String[]{"Mathematics", "Physics", "Computer science", "English", "Biology"};
  96.  
  97.     public Subject(){
  98.         for(int i = 0; i < this.nameSubjects.length; i++){
  99.             this.nameSubject = nameSubjects[i];
  100.             this.mark = (float)(Math.random()*(5-2))+2;
  101.         }
  102.     }
  103.  
  104.  
  105.     public void check(){
  106.         if(mark > 2 && mark <= 5){
  107.             passed = true;
  108.         }
  109.     }
  110.  
  111. }
Compilation error #stdin compilation error #stdout 0s 0KB
comments (?)
stdin
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Standard input is empty
compilation info 
Main.java:29: error: class Student is public, should be declared in a file named Student.java
public class Student
       ^
Main.java:90: error: class Subject is public, should be declared in a file named Subject.java
public class Subject {
       ^
2 errors
stdout
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Standard output is empty
https://ideone.com/XSh4cv
language:
Java (HotSpot 12)
created:
5 years ago
visibility:
public

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