Refactor Parser

Parser.java

@@ -7,36 +7,44 @@
  */
 public class Parser {
   private File file;
-  public synchronized void setFile(File f) {
-    file = f;
-  }
-  public synchronized File getFile() {
-    return file;
+
+  public Parser(File file) {
+    this.file = file;
   }
+
   public String getContent() throws IOException {
-    FileInputStream i = new FileInputStream(file);
-    String output = "";
-    int data;
-    while ((data = i.read()) > 0) {
-      output += (char) data;
+    StringBuilder output = new StringBuilder();
+
+    try (FileInputStream i = new FileInputStream(file)) {
+      int data;
+      while ((data = i.read()) > 0) {
+        output.append((char) data);
+      }
     }
-    return output;
+
+    return output.toString();
   }
+
   public String getContentWithoutUnicode() throws IOException {
-    FileInputStream i = new FileInputStream(file);
-    String output = "";
-    int data;
-    while ((data = i.read()) > 0) {
-      if (data < 0x80) {
-        output += (char) data;
+    StringBuilder output = new StringBuilder();
+
+    try (FileInputStream i = new FileInputStream(file)) {
+      int data;
+      while ((data = i.read()) > 0) {
+        if (data < 0x80) {
+          output.append((char) data);
+        }
       }
     }
-    return output;
+
+    return output.toString();
   }
+
   public void saveContent(String content) throws IOException {
-    FileOutputStream o = new FileOutputStream(file);
-    for (int i = 0; i < content.length(); i += 1) {
-      o.write(content.charAt(i));
+    try (FileOutputStream o = new FileOutputStream(file)) {
+      for (int i = 0; i < content.length(); i += 1) {
+        o.write(content.charAt(i));
+      }
     }
   }
 }