JavaSection66

// Guide to Java
// Copyright 2014, by J.T. Streib and T. Soma

// a program to output course information

import java.util.*;

class Courses {
public static void main(String[] args) {
    // declaration and initialization of variables
    Course course;
    String str, dept, number, name;
    Scanner scanner;
    scanner = new Scanner(System.in);

    // input course
    System.out.print("Enter the course: ");
    str = scanner.nextLine();
    dept = str.substring(0, str.indexOf(" "));
    str = str.substring(str.indexOf(" ")+1, str.length());
    number = str.substring(0, str.indexOf(" "));
    name = str.substring(str.indexOf(" ")+1, str.length());
    course = new Course(dept, number, name);

    // output course information
    System.out.println();
    System.out.println("The class, \"" + course.getName() +
                                           "\", is a ");
    System.out.println(course.getLevel() +
                        " level class offered by the ");
    System.out.println(course.getDepartment() +
                                        " department.");
}
}

// definition of Course class

class Course {
// data member
private String department;
private String number;
private String name;
private String level;

// constructor
public Course() {
    this("", "", "");
}

// constructor
public Course(String dept, String number, String name) {
    setDepartment(dept);
    setNumber(number);
    setName(name);
    setLevel();
}

// mutator methods
public void setDepartment(String dept) {
    if(dept.equals("CS"))
       department = "Computer Science";
    else
       if(dept.equals("MA"))
          department = "Mathematics";
       else
          department = "undetermined";
}

public void setNumber(String number) {
    this.number = number;
}

public void setName(String name) {
    this.name = name;
}

public void setLevel() {
    String str;
    char num;
    str = number.substring(0, 1);
    num = str.charAt(0);
    switch(num) {
       case '1': level = "freshman";
                 break;
       case '2': level = "sophomore";
                 break;
       case '3': level = "junior";
                 break;
       case '4': level = "senior";
                 break;
       default: level = "undetermined";
    }
}

// accessor methods
public String getDepartment() {
    return department;
}

public String getNumber() {
    return number;
}

public String getName() {
    return name;
}

public String getLevel() {
    return level;
}
}