diff --git a/src/main/java/istlab/KisoJikken/App.java b/src/main/java/istlab/KisoJikken/App.java
index a29172c..c11cdf4 100644
--- a/src/main/java/istlab/KisoJikken/App.java
+++ b/src/main/java/istlab/KisoJikken/App.java
@@ -15,7 +15,7 @@
  */
 public class App {
     public static String userhome;
-    public static String nwpsrc = "/NWP/src";
+    public static String nwpsrc = File.separator+"NWP"+File.separator+"src";
     public static String gitrepos = "https://git.istlab.info/git/miura250/NWP.git";
 
     public static void main(String[] args) {
diff --git a/src/main/java/istlab/KisoJikken/Editor.java b/src/main/java/istlab/KisoJikken/Editor.java
index d6451f4..ba2a2ad 100644
--- a/src/main/java/istlab/KisoJikken/Editor.java
+++ b/src/main/java/istlab/KisoJikken/Editor.java
@@ -15,6 +15,7 @@
 import java.io.InputStream;
 import java.io.InputStreamReader;
 import java.io.PrintWriter;
+import java.io.UnsupportedEncodingException;
 
 import javax.swing.JButton;
 import javax.swing.JFrame;
@@ -124,7 +125,12 @@
         } catch (FileNotFoundException e) {
             e.printStackTrace();
         }
-        BufferedReader br = new BufferedReader(new InputStreamReader(is));
+        BufferedReader br=null;
+        try {
+            br = new BufferedReader(new InputStreamReader(is,"UTF-8"));
+        } catch (UnsupportedEncodingException e) {
+            e.printStackTrace();
+        }
         StringBuilder sb = new StringBuilder();
         String line;
         try {
@@ -141,10 +147,10 @@
         String src = textArea.getText();
         // System.out.println(src);
         try {
-            PrintWriter out = new PrintWriter(file.getAbsolutePath());
+            PrintWriter out = new PrintWriter(file.getAbsolutePath(), "UTF-8");
             out.println(src);
             out.flush();
-        } catch (FileNotFoundException e) {
+        } catch (FileNotFoundException | UnsupportedEncodingException e) {
             e.printStackTrace();
         }
         System.out.println("保存しました");
diff --git a/src/main/java/istlab/KisoJikken/JCompiler.java b/src/main/java/istlab/KisoJikken/JCompiler.java
index 7bf52af..5bd767f 100644
--- a/src/main/java/istlab/KisoJikken/JCompiler.java
+++ b/src/main/java/istlab/KisoJikken/JCompiler.java
@@ -14,7 +14,7 @@
     public JCompiler(String p) {
         absolutePath = p;
         thread = new Thread(this);
-        String[] ary = absolutePath.split("/");
+        String[] ary = absolutePath.split(File.separator);
         for (int i = 0; i < ary.length; i++) {
             if (ary[i].equals("src")) {
                 pkgname = ary[i + 1];
diff --git a/src/main/java/istlab/KisoJikken/JExecutor.java b/src/main/java/istlab/KisoJikken/JExecutor.java
index c657154..3c34ad6 100644
--- a/src/main/java/istlab/KisoJikken/JExecutor.java
+++ b/src/main/java/istlab/KisoJikken/JExecutor.java
@@ -14,7 +14,7 @@
     public JExecutor(String p) {
         absolutePath = p;
         thread = new Thread(this);
-        String[] ary = absolutePath.split("/");
+        String[] ary = absolutePath.split(File.separator);
         for (int i = 0; i < ary.length; i++) {
             if (ary[i].equals("src")) {
                 pkgname = ary[i + 1];