Student.java

package Lab6;

public class Student {

    private int studentID;
    private String studentName;
    private String major;

    public Student(int studentID, String studentName, String major) {
        this.studentID = studentID;
        this.studentName = studentName;
        this.major = major;
    }

    public int getStudentID() {
        return studentID;
    }
    public String getStudentName() {
        return studentName;
    }
    public String getMajor() {
        return major;
    }

    public String toString(){
        return "Student name: " + studentName + "\nStudent ID: " +studentID + "\nMajor: " + major;
    }

    public boolean equals(Object obj){
        if(this == obj){
            return true;
        }
        else if(obj == null) return false;
        if(!(obj instanceof Student)) return false;

        Student student = (Student)obj;
        if(student.getStudentID() != this.getStudentID()) return false;

        return true;
    }

    @Override
    public int hashCode() {
        return Integer.hashCode(studentID);
    }
}