Read a file character by character/UTF8: Difference between revisions

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@@ Line 378: / Line 378: @@
 public class FileUtil {
+    FileReader reader;
-    String readFile(String path) throws IOException {
-        FileReader reader = new FileReader(path, UTF_8);
+    /** cast the returned value to 'char' */
-        StringBuilder string = new StringBuilder();
+    int next() throws IOException {
+        int value;
         try {
-            int value;
             /* 'read' will return 0 through 0xffff, and -1 for EOS */
-            while ((value = reader.read()) != -1)
+            value = (char) reader.read();
-                string.append((char) value);
+        } catch (IOException exception) {
-        } finally {
             reader.close();
+            throw exception;
         }
-        return string.toString();
+        return value;
+    }
+    void open(String path) throws IOException {
+        reader = new FileReader(path, UTF_8);
+    }
+    void close() throws IOException {
+        reader.close();
     }
 }