diff --git a/.gitignore b/.gitignore
index 2b389d0..b393ade 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,3 @@
 *.class
 bin/*
-
+*.zip
diff --git a/src/main/java/info/istlab/dp/dp1/TemplateMethodTest.java b/src/main/java/info/istlab/dp/dp1/TemplateMethodTest.java
new file mode 100644
index 0000000..575f0bb
--- /dev/null
+++ b/src/main/java/info/istlab/dp/dp1/TemplateMethodTest.java
@@ -0,0 +1,153 @@
+package info.istlab.dp.dp1;
+
+import java.io.BufferedInputStream;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+import java.io.DataOutputStream;
+import java.io.File;
+import java.io.FileInputStream;
+import java.io.FileNotFoundException;
+import java.io.FileOutputStream;
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.ObjectInputStream;
+import java.io.ObjectOutputStream;
+import java.io.OutputStream;
+import java.util.ArrayList;
+import java.util.Scanner;
+import java.util.zip.GZIPInputStream;
+import java.util.zip.GZIPOutputStream;
+
+public class TemplateMethodTest {
+    public static void main(String[] args) {
+        ObjctFileStore ofs = new ObjctFileStore();
+        Scanner stdin = new Scanner(System.in);
+        System.out.print("Input message > ");
+        ofs.add(stdin.nextLine());
+        stdin.close();
+    }
+}
+
+/* データを追記可能なオブジェクト（圧縮や暗号化をする可能性も） */
+abstract class CompressData {
+    protected ArrayList<String> mesList;
+
+    public abstract void store2messages(); // データストアから復元 
+    // データを追加する（テンプレートメソッド）
+    public final void add(String mes) {
+        store2messages();// ArrayListを復元
+        mesList.add(mes);
+        for(String s: mesList) System.out.println(s);
+        messages2store();// ArrayListを圧縮(または暗号化)
+    }
+    public abstract void messages2store(); // データストアに保存
+}
+
+class ObjctFileStore extends CompressData {
+    String filename = "ZipTest.zip";
+
+    ObjctFileStore() {
+        if (!new File(filename).exists()) { // ファイルが無い時は、空のArrayListを保存する
+            mesList = new ArrayList<String>();
+            messages2store();
+        }
+    }
+
+    @Override
+    public final void store2messages() {
+        byte[] ba = ZipUtil.readBytesFromFile(filename);
+        mesList = ZipUtil.byte2object(ba);
+    }
+
+    @Override
+    public void messages2store() {
+        byte[] ba = ZipUtil.object2byte(mesList);
+        ZipUtil.writeBytesToFile(ba, filename);
+    }
+    // public void add(String mes){
+    // }
+}
+
+class ZipUtil {
+    @SuppressWarnings("unchecked")
+    public static ArrayList<String> byte2object(byte[] ba) {
+        ByteArrayInputStream bais = new ByteArrayInputStream(ba);
+        InputStream gzipis = null;
+        ObjectInputStream ois = null;
+        ArrayList<String> al = null;
+        try {
+            gzipis = new GZIPInputStream(bais);
+            ois = new ObjectInputStream(gzipis);
+
+            al = (ArrayList<String>) ois.readObject();
+            ois.close();
+            gzipis.close();
+            bais.close();
+        } catch (IOException eofex) {
+            eofex.printStackTrace(System.err);
+        } catch (ClassNotFoundException excnf) {
+            System.err.println("ClassNotFound Error");
+        } finally {
+        }
+        return al;
+    }
+
+    public static byte[] object2byte(ArrayList<String> obj) {
+        ByteArrayOutputStream baos = new ByteArrayOutputStream();
+        OutputStream outstream = null;
+        ObjectOutputStream oos = null;
+        try {
+            outstream = new GZIPOutputStream(baos);
+            oos = new ObjectOutputStream(outstream);
+
+            oos.writeObject(obj);
+
+            oos.close();
+            outstream.close();
+        } catch (IOException iex) {
+            iex.printStackTrace(System.out);
+        }
+        System.out.println("save size: " + baos.size() + " bytes.");
+        return baos.toByteArray();
+    }
+
+    public static byte[] readBytesFromFile(String path) {
+        File f = new File(path);
+        if (!f.exists())
+            System.out.println("No file " + path);
+
+        BufferedInputStream in;
+        ByteArrayOutputStream varyBuf = new ByteArrayOutputStream();
+        final int LS = 1024;
+        int b;
+        try {
+            in = new BufferedInputStream(new FileInputStream(path));
+            byte buf[] = new byte[LS];
+            while ((b = in.read(buf, 0, buf.length)) != -1) {
+                varyBuf.write(buf, 0, b);
+            }
+            varyBuf.close();
+            in.close();
+        } catch (FileNotFoundException e) {
+            e.printStackTrace();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+        return varyBuf.toByteArray();
+    }
+
+    public static void writeBytesToFile(byte[] ba, String filepath) {
+        OutputStream fos = null;
+        DataOutputStream dos = null;
+        try {
+            fos = new FileOutputStream(filepath);
+            dos = new DataOutputStream(fos);
+            dos.write(ba);
+            dos.close();
+            fos.close();
+        } catch (IOException iex) {
+            iex.printStackTrace(System.out);
+        }
+    }
+
+}