student.java

javaSE以控制台操作

public class Student extends Person {

	/**
	 * 空构造方法
	 */
	public Student() {

	}

	/**
	 * 可初始化属性ID,name,gender,age,score的带参数构造方法
	 * 
	 * @param ID
	 * @param name
	 * @param gender
	 * @param age
	 * @param score
	 */

	public Student(String ID, String name, String gender, int age, int score) {
		super(name, gender);
		this.age = age;
		this.ID = ID;
		this.score = score;
	}

	/**
	 * 返回属性ID的值
	 * 
	 * @return
	 */

	public String getID() {
		return ID;
	}

	/**
	 * 设置属性ID的值
	 * 
	 * @param id
	 */

	public void setID(String id) {
		ID = id;
	}

	/**
	 * 返回属性age的值
	 * 
	 * @return
	 */

	public int getAge() {
		return age;
	}

	/**
	 * 设置属性age的值
	 * 
	 * @param age
	 */

	public void setAge(int age) {
		this.age = age;
	}

	/**
	 * 返回属性score的值
	 * 
	 * @return
	 */

	public int getScore() {
		return score;
	}

	/**
	 * 设置属性score的值
	 * 
	 * @param score
	 */

	public void setScore(int score) {
		this.score = score;
	}

	/**
	 * 通过score的值计算等级
	 * 
	 * @return
	 */

	public char calcGrade() {
		int s = score / 10;
		char a;
		switch (s) {
                case 10:
                        a = 'A';
		case 9:
			a = 'A';
			break;
		case 8:
			a = 'B';
			break;
		case 7:
			a = 'C';
			break;
		case 6:
			a = 'D';
			break;
		default:
			a = 'E';
		}
		return a;

	}

	/**
	 * 重写toString()方法
	 */

	public String toString() {
		return this.getID() + "\t" + super.getName() + "\t" + super.getGender()
				+ "\t" + this.getName() + "\t" + this.getScore() + "\t"
				+ this.calcGrade();

	}

	private String ID;
	private int age;
	private int score;

}