8일 차 시험(깊은 복사, 얕은 복사)

class Score {

private int eng;

private int math;

private int lang;

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;

}

public int getLang() {

return lang;

}

public void setLang(int lang) {

this.lang = lang;

}

@Override

public String toString() {

return "Score [eng=" + eng + ", math=" + math + ", lang=" + lang + "]";

}

public Score() {

eng = 90;

math = 80;

lang = 70;

}

public Score(int eng, int math, int lang) {

setScore(eng, math, lang);

}

public void setScore(int i, int j, int k) {

this.eng = i;

this.math = j;

this.lang = k;

}

}

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class Student {

private String name;

private Score score;

public String getName() {

return name;

}

public void setName(String name) {

this.name = name;

}

public Score getScore() {

return score;

}

public void setScore(Score score) {

this.score = score;

}

@Override

public String toString() {

return "Student [name=" + name + ", score=" + score + "]";

}

public Student() {

name = "박성욱";

score = new Score();

}

public Student(String name, Score score) {

this.score = new Score();

this.score.setEng(score.getEng());

this.score.setLang(score.getLang());

this.score.setMath(score.getMath());

}

public void setStudent(String name, Score score) {

// Circle cir3 = new Circle();

// cir3.getX().setX(20);

this.score.setEng(score.getEng());

this.score.setLang(score.getLang());

this.score.setMath(score.getMath());

this.name = name;

}

}

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import java.util.Scanner;

public class Test6 {

public static void main(String[] args) {

Scanner scan = new Scanner(System.in);

int i, j, k;

System.out.println("점수를 입력하세요");

i = scan.nextInt();

System.out.println("점수를 입력하세요");

j = scan.nextInt();

System.out.println("점수를 입력하세요");

k = scan.nextInt();

Score score = new Score(i, j, k);

Student stu = new Student();

Student stu2 = new Student("박성욱", score);

stu2.setName("박성성욱");

System.out.println(stu);

System.out.println(stu2);

System.out.println();

score.setEng(90);

score.setLang(80);

score.setMath(100);

System.out.println(stu);

System.out.println(stu2);

System.out.println();

System.out.println(stu);

System.out.println(stu2);

}

}

깊은 복사를 통해서

직접 score에 점수를 기입해도

점수는 본인이 입력한 값만 들어가게 되었다.

오늘 공부한 내용을 Class Diagram으로 그려보면