6주차 미션 구현 완료(정규호)

src/main/java/calculator/Application.java

@@ -1,7 +1,10 @@
 package calculator;
 
+import calculator.controller.CalculatorController;
+
 public class Application {
     public static void main(String[] args) {
-        // TODO: 프로그램 구현
+        CalculatorController controller = new CalculatorController();
+        controller.run();
     }
 }

src/main/java/calculator/controller/CalculatorController.java

@@ -0,0 +1,18 @@
+package calculator.controller;
+
+import calculator.model.Calculator;
+import calculator.view.InputView;
+import calculator.view.OutputView;
+
+public class CalculatorController {
+    public void run() {
+        try {
+            String input = InputView.getInput();
+            int result = Calculator.add(input);
+            OutputView.printResult(result);
+        } catch (IllegalArgumentException e) {
+            OutputView.printError(e.getMessage());
+
+        }
+    }
+}

src/main/java/calculator/model/Calculator.java

@@ -0,0 +1,42 @@
+package calculator.model;
+
+public class Calculator {
+    public static int add(String input) {
+        if (input == null || input.isEmpty()) {
+            return 0;
+        }
+
+        String delimiter = ",|:";
+
+        if (input.startsWith("//")) {
+            int delimiterIndex = input.indexOf("\n");
+            if (delimiterIndex == -1) {
+                throw new IllegalArgumentException("잘못된 구분자 형식입니다.");
+            }
+
+            String customDelimiter = input.substring(2, delimiterIndex);
+            if (customDelimiter.isEmpty()) {
+                throw new IllegalArgumentException("커스텀 구분자가 비어 있습니다.");
+            }
+
+            delimiter = customDelimiter;
+            input = input.substring(delimiterIndex + 1);
+        }
+
+        String[] tokens = input.split(delimiter);
+        int sum = 0;
+
+        for (String token : tokens) {
+            if (token.isEmpty()) continue;
+
+            try {
+                int number = Integer.parseInt(token.trim());
+                sum += number;
+            } catch (NumberFormatException e) {
+                throw new IllegalArgumentException("숫자가 아닌 값이 포함되어 있습니다: " + token);
+            }
+        }
+
+        return sum;
+    }
+}

src/main/java/calculator/view/InputView.java

@@ -0,0 +1,11 @@
+package calculator.view;
+
+import java.util.Scanner;
+
+public class InputView {
+    public static String getInput() {
+        Scanner scanner = new Scanner(System.in);
+        System.out.print("계산할 문자열을 입력하세요: ");
+        return scanner.nextLine();
+    }
+}

src/main/java/calculator/view/OutputView.java

@@ -0,0 +1,11 @@
+package calculator.view;
+
+public class OutputView {
+    public static void printResult(int result) {
+        System.out.println("계산 결과: " + result);
+    }
+
+    public static void printError(String message) {
+        System.err.println("오류: " + message);
+    }
+}