자바 - 연습문제8

[ 교실의 학생 정보를 저장하는 HashMap 만들기 ]

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 public static void main(String[] args) {
    
	// 교실의 학생 정보를 저장하는 HashMap 만들기
    // Key   : 학번(예: 10101)
    // Value : Student 객체
    
	// HashMap 선언 & 생성
    Map<Integer, Student> clazz = new HashMap<Integer, Student>();
    
	// Entry 저장
    clazz.put(10101, new Student("가길동", new Exam(100, 100, 100)));
    clazz.put(10102, new Student("나길동", new Exam(90, 90, 90)));
    
	Integer[] stuNo = {10101, 10102};
    for(int i = 0; i < stuNo.length; i++) {
      Student student = clazz.get(stuNo[i]);
      System.out.println("이름: " + student.getName());
      System.out.println("시험: " + student.getName());
    }
  }

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[ 시험 클래스 ]

public class Exam {

	private int kro;
    private int eng;
    private int math;
    
	// new Exam(100, 100, 100)
    public Exam(int kro, int eng, int math) {
      super();
      this.kro = kro;
      this.eng = eng;
      this.math = math;
    }

	public int getKro() {
      return kro;
    }

	public void setKro(int kro) {
      this.kro = kro;
    }

	public int getEng() {
      return eng;
    }

	public void setEng(int eng) {
      this.eng = eng;
    }

	public int getMath() {
      return math;
    }

	public void setMath(int math) {
      this.math = math;
    }

	@Override
    public String toString() {
      return "Exam [kro=" + kro + ", eng=" + eng + ", math=" + math + "]";
    }

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[ 학생 클래스 ]

public class Student {

  private String name;
  private Exam exam;
  
  public Student() {
  }

  public Student(String name, Exam exam) {
    super();
    this.name = name;
    this.exam = exam;
  }

  public String getName() {
    return name;
  }

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

  public Exam getExam() {
    return exam;
  }

  public void setExam(Exam exam) {
    this.exam = exam;
  }