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// TranscriptEntry.java - Chapter 16 version. 
 
// Copyright 2000 by Jacquie Barker - all rights reserved. 
 
// A MODEL class. 
 
 
public class TranscriptEntry { 
	//------------ 
	// Attributes. 
	//------------ 
 
	private String grade; 
	private Student student; 
	private Section section; 
	private Transcript transcript; 
 
	//---------------- 
	// Constructor(s). 
	//---------------- 
 
	public TranscriptEntry(Student s, String grade, Section se) { 
		setStudent(s); 
		setSection(se); 
		setGrade(grade); 
 
		// Obtain the Student's transcript ... 
 
		Transcript t = s.getTranscript(); 
 
		// ... and then hook the Transcript and the TranscriptEntry 
		// together bidirectionally. 
 
		setTranscript(t); 
		t.addTranscriptEntry(this); 
	} 
 
	//----------------- 
	// Get/set methods. 
	//----------------- 
 
	public void setStudent(Student s) { 
		student = s; 
	} 
 
	public Student getStudent() { 
		return student; 
	} 
 
	public void setSection(Section s) { 
		section = s; 
	} 
 
	public Section getSection() { 
		return section; 
	} 
 
	public void setGrade(String grade) { 
		this.grade = grade; 
	} 
 
	public String getGrade() { 
		return grade; 
	} 
 
	public void setTranscript(Transcript t) { 
		transcript = t; 
	} 
 
	public Transcript getTranscript() { 
		return transcript; 
	} 
 
	//----------------------------- 
	// Miscellaneous other methods. 
	//----------------------------- 
 
	// These next two methods are declared to be static, so that they 
	// may be used as utility methods. 
 
	public static boolean validateGrade(String grade) { 
		boolean outcome = false; 
 
		if (grade.equals("F") || 
		    grade.equals("I")) outcome = true; 
 
		if (grade.startsWith("A") || 
		    grade.startsWith("B") || 
		    grade.startsWith("C") || 
		    grade.startsWith("D")) { 
			if (grade.length() == 1) outcome = true; 
			else if (grade.length() > 2) outcome = false; 
			else { 
				if (grade.endsWith("+") || 
				    grade.endsWith("-")) outcome = true; 
				else outcome = false;  
			} 
		} 
 
		return outcome; 
	} 
 
	public static boolean passingGrade(String grade) { 
		// First, make sure it is a valid grade. 
 
		if (!validateGrade(grade)) return false; 
 
		// Next, make sure that the grade is a D or better. 
 
		if (grade.startsWith("A") || 
		    grade.startsWith("B") || 
		    grade.startsWith("C") || 
		    grade.startsWith("D")) return true; 
 
		else return false; 
	} 
}