/**
 * Write a description of class Exam here.
 * 
 * @author (your name) 
 * @version (a version number or a date)
 */
public class Exam
{
    // instance variables - replace the example below with your own
    private int examNumber;
    private String name;
    private String day;
    private int startTime;
    private int endTime;

    // default constructor
    public Exam()
    {
        // initialise instance variables
    }
    
    // fully qualified constructor
    public Exam(int examNumber, String name, String day,
                int startTime, int endTime)
    {
        this.examNumber = examNumber;
        this.name = name;
        this.day = day;
        this.startTime = startTime;
        this.endTime = endTime;
    }

    // partially qualified constructor
    public Exam(int examNumber, String name)
    {
        this(examNumber, name, "Mon", 5, 6);   
    }
    
    // copy constructor
    public Exam( Exam otherExam)
    {
        this.examNumber = otherExam.examNumber;
        this.name = otherExam.name;
        this.day = otherExam.day;
        this.startTime = otherExam.startTime;
        this.endTime = otherExam.endTime;          
    }
    
    // set methods
    public void setExamID( int theID)
    {
        examNumber = theID;
    }
    
    public void setCourseID( String theName)
    {
        name = theName;
    }
    
    public void setExamTime( int start, int end)
    {
        this.startTime = start;
        this.endTime = end;
    }
    
    public String toString()
    {
        return "Exam " + examNumber + " for " +
                name + " on " + day + " from " +
                startTime + " until " + endTime;
    }
    
    // Display one of the following types of output:
    //      Between exam 1 and 2 there is no overlap
    //      Between exam 1 and 3 there is overlap
    // Exams overlap if they are on the same day and
    // there is overlap between times.
    public void overlaps( Exam other)
    {
        System.out.print("Between exam " + this.examNumber +
                           " and " + other.examNumber +
                           " there is ");
        // figure out whether or not to print "no"
        if( !this.day.equals( other.day) || 
            this.startTime < other.startTime &&
            this.startTime > other.endTime &&
            this.endTime < other.startTime &&
            this.endTime > other.endTime &&
            other.startTime < this.startTime &&
            other.startTime > this.endTime &&
            other.endTime < this.startTime &&
            other.endTime > this.endTime
          ) 
        {
            System.out.print("no ");   
        }
        
        System.out.println("overlap");
    }
    
}//end class Exam