diff --git a/bin/j1/TestThread.class b/bin/j1/TestThread.class
index 6fdf06a..0c48e86 100644
--- a/bin/j1/TestThread.class
+++ b/bin/j1/TestThread.class
Binary files differ
diff --git a/bin/j1/myThread.class b/bin/j1/myThread.class
index fba74c6..845f0da 100644
--- a/bin/j1/myThread.class
+++ b/bin/j1/myThread.class
Binary files differ
diff --git a/src/Main.java b/src/Main.java
new file mode 100644
index 0000000..b850ac5
--- /dev/null
+++ b/src/Main.java
@@ -0,0 +1,25 @@
+import java.io.BufferedReader;
+import java.io.InputStreamReader;
+
+public class Main {
+	public static void main(String args[]){
+		int x, y ;
+		InputStreamReader isr = new InputStreamReader(System.in) ; 
+		BufferedReader br = new BufferedReader(isr) ;
+		System.out.print("input integer: ") ;
+		try{
+			String buf ;
+			buf = br.readLine() ; // 1 行のデータを入力
+			x = Integer.parseInt(buf) ; // 入力された文字列を整数に変換
+		} catch(Exception e){
+			x	= 0;
+		}
+
+		System.out.println("Input Number = " + x) ; /*?? 変数ｙに値を設定する */
+		/*?? 和，差，積，商，剰余を表示する */
+
+		System.out.println("17A5000") ;
+		// 出力する文字列を各自の学生番号に置き換えること．
+		
+	} // end main
+}