refactor: 입력시 throw IOException 예외 명시 삭제

Author: wonu606

calculator/src/main/java/com/wonu606/Main.java

@@ -25,7 +25,7 @@ public static void main(String[] args) {
         }
     }
 
-    private static void runApp(App app, Input input, Print printer) throws IOException {
+    private static void runApp(App app, Input input, Print printer) {
         app.execute(input, printer);
     }
 }

calculator/src/main/java/com/wonu606/app/App.java

@@ -6,5 +6,5 @@
 
 public interface App {
 
-    void execute(Input input, Print printer) throws IOException;
+    void execute(Input input, Print printer);
 }

calculator/src/main/java/com/wonu606/calculator/CalculatorApp.java

@@ -7,10 +7,7 @@
 import com.wonu606.io.Input;
 import com.wonu606.io.Print;
 import com.wonu606.calculator.util.CalculatorMessage;
-import java.io.IOException;
-import java.util.ArrayList;
 import java.util.HashMap;
-import java.util.List;
 import java.util.Map;
 import java.util.Optional;
 
@@ -46,12 +43,6 @@ private CalculatorStrategy getStrategyOrThrow(String selection) {
     }
 
     private String inputMenuSelection(Input input) {
-        while (true) {
-            try {
-                return input.getInput();
-            } catch (IOException e) {
-                e.printStackTrace();
-            }
-        }
+        return input.getInput();
     }
 }

calculator/src/main/java/com/wonu606/io/ConsoleInput.java

@@ -8,7 +8,7 @@ public class ConsoleInput implements Input {
     Scanner scanner = new Scanner(System.in);
 
     @Override
-    public String getInput() throws IOException {
+    public String getInput() {
         return scanner.nextLine();
     }
 

calculator/src/main/java/com/wonu606/io/Input.java

@@ -1,10 +1,8 @@
 package com.wonu606.io;
 
-import java.io.IOException;
-
 public interface Input {
 
-    String getInput() throws IOException;
+    String getInput();
 
     void tearDown();
 }

calculator/src/test/java/com/wonu606/io/ConsoleInputTest.java

@@ -12,7 +12,7 @@ class ConsoleInputTest {
 
     @Test
     @DisplayName("메뉴 입력")
-    void testMenuSelectionInput() throws IOException {
+    void testMenuSelectionInput() {
         String menuSelection = "1";
         InputStream in = new ByteArrayInputStream(menuSelection.getBytes());
         System.setIn(in);
@@ -24,7 +24,7 @@ void testMenuSelectionInput() throws IOException {
 
     @Test
     @DisplayName("표현식 입력")
-    void testExpressionInput() throws IOException {
+    void testExpressionInput() {
         String expression = "2 + 3";
         InputStream in = new ByteArrayInputStream(expression.getBytes());
         System.setIn(in);
@@ -36,7 +36,7 @@ void testExpressionInput() throws IOException {
 
     @Test
     @DisplayName("개행 입력")
-    void testNewLineInput() throws IOException {
+    void testNewLineInput() {
         String newLine = "\n";
         InputStream in = new ByteArrayInputStream(newLine.getBytes());
         System.setIn(in);