CS计算机代考程序代写 Java import java.util.Arrays;

import java.util.Arrays;

public class Student implements Comparable , Enrollable {
public static final int MAX_NUM_SUBJECTS = 4;
private String firstName;
private String lastName;
private long studentID;
private Subject[] subjects = new Subject[MAX_NUM_SUBJECTS];
private int numSubjects = 0;

public Student(String firstName, String lastName, long studentID) {
this.firstName = firstName;
this.lastName = lastName;
this.studentID = studentID;
}

public String getFirstName() {
return firstName;
}

public void setFirstName(String firstName) {
this.firstName = firstName;
}

public String getLastName() {
return lastName;
}

public void setLastName(String lastName) {
this.lastName = lastName;
}

public long getStudentID() {
return studentID;
}

public void setStudentID(long studentID) {
this.studentID = studentID;
}

@Override
public int compareTo(Student o) {
if (this.studentID > o.studentID)
return 1;
else if (this.studentID < o.studentID) return -1; else return 0; } public static void main(String[] args){ Student[] s = new Student[3]; s[0] = new Student("Emily", "Brown", 11111); s[1] = new Student("John", "Dunn", 10001); s[2] = new Student("Mary", "King", 22222); Arrays.sort(s); System.out.println(Arrays.toString(s)); } @Override public String toString() { return "Student{" + "firstName='" + firstName + '\'' + ", lastName='" + lastName + '\'' + ", studentID=" + studentID + '}'; } @Override public boolean enrol(Subject subject) { if (numSubjects == MAX_NUM_SUBJECTS) return false; if (!subject.enrol(this)) return false; subjects[numSubjects] = subject; numSubjects++; return true; } }