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[14기] 곽동우 과제 제출합니다. #36

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[14기] 곽동우 과제 제출합니다. #36

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125 changes: 123 additions & 2 deletions src/main/java/gpacalc/Application.java
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Original file line number Diff line number Diff line change
@@ -1,7 +1,128 @@
package gpacalc;
import java.util.*;

public class Application {
public static void main(String[] args) {
//TODO: 구현

Scanner s = new Scanner(System.in);
String input = "";
String[] majorInput;
String[] generalInput;
int credit = 0;
double gpaAvg = 0.0;
double majorGpaAvg = 0.0;
double gpaOfSubject = 0.0;
int creditOfSubject = 0;
double weight = 0.0;

System.out.println("전공 과목명과 이수학점, 평점을 입력해주세요(예시: 프로그래밍언어론-3-A+,소프트웨어공학-3-B+):");
input = s.next();
majorInput = input.split(",");
validation(majorInput);

System.out.println("\n교양 과목명과 이수학점, 평점을 입력해주세요(예시: 선형대수학-3-C0,인간관계와자기성장-3-P):");
input = s.next();
generalInput = input.split(",");
validation(generalInput);

System.out.println("\n<과목 목록>");
for (String string : majorInput) {
System.out.print("[전공] ");
creditOfSubject = calculateCredit(string);
gpaOfSubject = calculateGpa(string);

if(gpaOfSubject != 5.0 && gpaOfSubject != -1.0) {
gpaAvg += gpaOfSubject * creditOfSubject; // P, NP는 평점에서 제외
weight += creditOfSubject; // 가중치에서도 제외
}

if(gpaOfSubject != 0.0 && gpaOfSubject != -1.0) credit += creditOfSubject; // F, NP는 취득학점 제외
}
majorGpaAvg = gpaAvg / weight;

for (String string : generalInput) {
System.out.print("[교양] ");
creditOfSubject = calculateCredit(string);
gpaOfSubject = calculateGpa(string);

if(gpaOfSubject != 5.0 && gpaOfSubject != -1.0) {
gpaAvg += gpaOfSubject * creditOfSubject; // P, NP는 평점에서 제외
weight += creditOfSubject; // 가중치에서도 제외
}

if(gpaOfSubject != 0.0 && gpaOfSubject != -1.0) credit += creditOfSubject; // F, NP는 취득학점 제외
}
gpaAvg = gpaAvg / weight;

System.out.println("\n<취득학점>");
System.out.println(credit + "학점");
System.out.println("\n<평점평균>");
System.out.println(String.format("%.2f", gpaAvg) + " / 4.5");
System.out.println("\n<전공 평점평균>");
System.out.println(String.format("%.2f", majorGpaAvg) + " / 4.5");
}

public static double calculateGpa(String subjectInput){

String[] subjectInfo = subjectInput.split("-");

for(int i = 0; i < subjectInfo.length; i++){
System.out.print(subjectInfo[i]);
if(i != 2) System.out.print(",");
else System.out.println();
}

double gpa = 0.0;

if(subjectInfo[2].equals("A+")){
gpa = 4.5;
} else if (subjectInfo[2].equals("A0")) {
gpa = 4.0;
} else if (subjectInfo[2].equals("B+")) {
gpa = 3.5;
} else if (subjectInfo[2].equals("B0")) {
gpa = 3.0;
} else if (subjectInfo[2].equals("C+")) {
gpa = 2.5;
} else if (subjectInfo[2].equals("C0")) {
gpa = 2.0;
}else if (subjectInfo[2].equals("D+")) {
gpa = 1.5;
} else if (subjectInfo[2].equals("D0")) {
gpa = 1.0;
} else if (subjectInfo[2].equals("P")) {
gpa = 5.0;
} else if (subjectInfo[2].equals("NP")) {
gpa = -1.0;
}
return gpa;
}

public static int calculateCredit(String subjectInput){
String[] subjectInfo = subjectInput.split("-");
return Integer.parseInt(subjectInfo[1]);
}

public static void validation(String[] subjectsInput){
String[] subjectInfo;
for(int i = 0; i < subjectsInput.length; i++){
subjectInfo = subjectsInput[i].split("-");
if(subjectInfo[0].length() > 10 || subjectInfo[0].isBlank()) throw new IllegalArgumentException("잘못된 과목명 입력");
if(Integer.parseInt(subjectInfo[1]) < 1 || Integer.parseInt(subjectInfo[1]) > 4) throw new IllegalArgumentException("잘못된 학점 입력");
switch (subjectInfo[2]) {
case "A+": break;
case "A0": break;
case "B+": break;
case "B0": break;
case "C+": break;
case "C0": break;
case "D+": break;
case "D0": break;
case "F": break;
case "P": break;
case "NP": break;
default: throw new IllegalArgumentException("잘못된 성적 입력");
}
}
}
}
}