Student ID
Implement a class Class with the following attributes and methods:
- A public attribute students which is a array of Student instances.
- A constructor with a parameter n, which is the total number of students in this class. The constructor should create n Student instances and initialized with student id from 0 ~ n-1
Example
Class cls = new Class(3)
cls.students[0]; // should be a student instance with id = 0
cls.students[1]; // should be a student instance with id = 1
cls.students[2]; // should be a student instance with id = 2
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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 | class Student { public int id; public Student(int id) { this.id = id; } } public class Class { /** * Declare a public attribute `students` which is an array of `Student` * instances */ // write your code here. public Student[] students; /** * Declare a constructor with a parameter n which is the total number of * students in the *class*. The constructor should create n Student * instances and initialized with student id from 0 ~ n-1 */ // write your code here Class(int n) { students = new Student[n]; for (int i = 0; i < n; i++) { students[i] = new Student(i); } } } |