[13기] 권혁민 과제 제출합니다.

docs/README.md

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+# GPA Calculator
+
+## Steps
+1. 입력 줄을 "," 기준으로 나눔 -> 전공 교양 list 따로 만듬
+2. 1번에 list 는 과목 객체로 데이터 값 입력
+3. loop를 통해서 취득 학점, 평점 평균, 전공 평균 계산
+4. 출력

src/main/java/gpacalc/Application.java

@@ -1,7 +1,77 @@
 package gpacalc;
 
+import camp.nextstep.edu.missionutils.Console;
+import gpacalc.util.ScoreValue;
+import gpacalc.util.Sepearate;
+import gpacalc.vo.Subject;
+
+import java.util.ArrayList;
+
 public class Application {
     public static void main(String[] args) {
         //TODO: 구현
+        ArrayList<String> majorString = new ArrayList<>();
+        ArrayList<String> generalString = new ArrayList<>();
+        ArrayList<Subject> major = new ArrayList<>();
+        ArrayList<Subject> general = new ArrayList<>();
+
+        System.out.println("전공 과목명과 이수학점, 평점을 입력해주세요(예시: 프로그래밍언어론-3-A+,소프트웨어공학-3-B+):");
+        String majorInput = Console.readLine();
+        System.out.println("교양 과목명과 이수학점, 평점을 입력해주세요(예시: 선형대수학-3-C0,인간관계와자기성장-3-P):");
+        String generalInput = Console.readLine();
+
+        majorString = Sepearate.separateByComma(majorInput);
+        generalString = Sepearate.separateByComma(generalInput);
+
+        major = Sepearate.separateByHyphen(majorString);
+        general = Sepearate.separateByHyphen(generalString);
+
+        int total_credit = 0;
+        int total_credit_average = 0;
+        double weight_total = 0.0;
+        for (Subject s : major) {
+            if (!s.getScore().equals("NP") && !s.getScore().equals("F")) {
+                total_credit += s.getCredit();
+            }
+
+            if (!s.getScore().equals("P") && !s.getScore().equals("NP")) {
+                total_credit_average += s.getCredit();
+                weight_total += calculateWeight(s.getScore(), s.getCredit());
+            }
+        }
+        double majorScore = (double) Math.round(weight_total / total_credit_average * 100) /100;
+
+        for (Subject s : general) {
+            if (!s.getScore().equals("NP") && !s.getScore().equals("F")) {
+                total_credit += s.getCredit();
+            }
+            if (!s.getScore().equals("P") && !s.getScore().equals("NP")) {
+                total_credit_average += s.getCredit();
+                weight_total += calculateWeight(s.getScore(), s.getCredit());
+            }
+        }
+        double allScore =  (double) Math.round(weight_total / total_credit_average * 100) /100;
+
+        System.out.println("\n<과목 목록>");
+        for (Subject s : major) {
+            System.out.print("[전공] ");
+            System.out.println(s.toString());
+        }
+        for (Subject s : general) {
+            System.out.print("[교양] ");
+            System.out.println(s.toString());
+        }
+
+        System.out.println("\n<취득학점>");
+        System.out.println(total_credit+"학점\n");
+        System.out.println("<평점평균>");
+        System.out.println(allScore + " / 4.5\n");
+        System.out.println("<전공 평점평균>");
+        System.out.println(majorScore + " / 4.5");
+
+    }
+
+    public static double calculateWeight(String score, int credit) {
+        return ScoreValue.findValue(score) * credit;
     }
 }

src/main/java/gpacalc/util/ScoreValue.java

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+package gpacalc.util;
+
+public class ScoreValue {
+    public static double findValue(String score) {
+        return switch (score) {
+            case "A+" -> 4.5;
+            case "A0" -> 4.0;
+            case "B+" -> 3.5;
+            case "B0" -> 3.0;
+            case "C+" -> 2.5;
+            case "C0" -> 2.0;
+            case "D+" -> 1.5;
+            case "D0" -> 1.0;
+            default -> 0.0;
+        };
+    }
+}

src/main/java/gpacalc/util/Sepearate.java

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+package gpacalc.util;
+
+import gpacalc.vo.Subject;
+
+import java.util.ArrayList;
+import java.util.StringTokenizer;
+
+public class Sepearate {
+    public static ArrayList<String> separateByComma(String line) {
+        ArrayList<String> result = new ArrayList<>();
+        StringTokenizer st = new StringTokenizer(line, ",");
+        while (st.hasMoreTokens()) {
+            String info = st.nextToken();
+            result.add(info);
+        }
+        return result;
+    }
+    public static ArrayList<Subject> separateByHyphen(ArrayList<String> subjects) {
+        ArrayList<Subject> result = new ArrayList<>();
+        StringTokenizer st;
+        for (String s: subjects) {
+            st = new StringTokenizer(s, "-");
+            String subjectName = st.nextToken();
+            int credit = 0;
+            String score = "";
+            try {
+                credit = Integer.parseInt(st.nextToken());
+                if (credit < 1 || credit > 4) {
+                    throw new IllegalArgumentException("학점은 1부터 4까지만");
+                }
+                score = st.nextToken();
+                if (!score.equals("A+") && !score.equals("A0") && !score.equals("B+") && !score.equals("B0") && !score.equals("C+") && !score.equals("C0") && !score.equals("D+") && !score.equals("D0") && !score.equals("F") && !score.equals("P") && !score.equals("NP")) {
+                    throw new IllegalArgumentException("평점이 이상한디,,,");
+                }
+            } catch (IllegalArgumentException e) {
+                System.out.println("예외가 발생: "  + e.getMessage());
+//                System.exit(0);
+
+                throw new IllegalArgumentException();
+            }
+
+            result.add(new Subject(subjectName, credit, score));
+        }
+        return result;
+    }
+}

src/main/java/gpacalc/vo/Subject.java

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+package gpacalc.vo;
+
+public class Subject {
+    private String subjectName;
+    private int credit;
+    private String score;
+
+    public Subject(String subjectName, int credit, String score) {
+        this.subjectName = subjectName;
+        this.credit = credit;
+        this.score = score;
+    }
+
+    public String getSubjectName() {
+        return subjectName;
+    }
+
+    public void setSubjectName(String subjectName) {
+        this.subjectName = subjectName;
+    }
+
+    public int getCredit() {
+        return credit;
+    }
+
+    public void setCredit(int credit) {
+        this.credit = credit;
+    }
+
+    public String getScore() {
+        return score;
+    }
+
+    public void setScore(String score) {
+        this.score = score;
+    }
+
+    public String toString() {
+        return subjectName + "," + credit + "," + score;
+    }
+}