Java講義 サンプル (Student)

Student.java

public class Student {
    private String firstName;
    private String lastName;
    private String course;
    private String gender;
    private double height;
    private double weight;

    public Student() {
        setFirstName("ひろき");
        setLastName("かめはま");
        setCourse("未所属");
        setGender("その他");
        setHeight(140);
        setWeight(40);
    }

    public Student(String firstName, String lastName, String course,
            String gender, double height, double weight) {
        setFirstName(firstName);
        setLastName(lastName);
        setCourse(course);
        setGender(gender);
        setHeight(height);
        setWeight(weight);
    }



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

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

    public void setFullName(String firstName, String lastName) {
        setFirstName(firstName);
        setLastName(lastName);
    }

    public void setCourse(String course) {
        this.course = course;
    }

    public void setGender(String gender) {
        if (gender.equals("男") || gender.equals("女")) {
            this.gender = gender;
        } else {
            this.gender = "その他";
        }
    }

    public void setHeight(double height) {
        if (height > 100) {
            this.height = height;
        } else {
            this.height = 100;
        }
    }

    public void setWeight(double weight) {
        if (weight > 40) {
            this.weight = weight;
        } else {
            this.weight = 40;
        }
    }

    public String getFirstName() {
        return firstName;
    }

    public String getLastName() {
        return lastName;
    }

    public String getCourse() {
        return course;
    }

    public String getGender() {
        return gender;
    }

    public double getHeight() {
        return height;
    }

    public double getWeight() {
        return weight;
    }
}

StudentTester.java

public class StudentTester {
    public static void main(String...args) {
        Student tsuyoshi = new Student(
                "たろう", "やまだ", "エンジニア科システムコース",
                "男", 168.0, 70.5);

        System.out.println(tsuyoshi.getLastName());
        System.out.println(tsuyoshi.getFirstName());
        System.out.println(tsuyoshi.getCourse());
        System.out.println(tsuyoshi.getGender());
        System.out.println(tsuyoshi.getHeight());
        System.out.println(tsuyoshi.getWeight());

        Student student = new Student();

        System.out.println(student.getLastName());
        System.out.println(student.getFirstName());
        System.out.println(student.getCourse());
        System.out.println(student.getGender());
        System.out.println(student.getHeight());
        System.out.println(student.getWeight());
    }
}