diff --git a/.idea/misc.xml b/.idea/misc.xml
index 8978d23..773fe0f 100644
--- a/.idea/misc.xml
+++ b/.idea/misc.xml
@@ -1,6 +1,6 @@
 <project version="4">
   <component name="ExternalStorageConfigurationManager" enabled="true" />
-  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="jbr-17" project-jdk-type="JavaSDK">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" project-jdk-name="jbr-17" project-jdk-type="JavaSDK">
     <output url="file://$PROJECT_DIR$/build/classes" />
   </component>
   <component name="ProjectType">
diff --git a/app/src/main/java/com/example/oplogy/MainActivity.java b/app/src/main/java/com/example/oplogy/MainActivity.java
index 86bff69..f16d9aa 100644
--- a/app/src/main/java/com/example/oplogy/MainActivity.java
+++ b/app/src/main/java/com/example/oplogy/MainActivity.java
@@ -2,13 +2,37 @@ package com.example.oplogy;
 
 import androidx.appcompat.app.AppCompatActivity;
 
+import android.annotation.SuppressLint;
 import android.os.Bundle;
+import android.view.View;
+import android.widget.Button;
+import android.widget.EditText;
+import android.widget.TextView;
 
-public class MainActivity extends AppCompatActivity {
+public class MainActivity extends AppCompatActivity implements View.OnClickListener {
 
+    Button button;
+//    TextView textView;
+    EditText editText;
+    @SuppressLint("MissingInflatedId")
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.activity_main);
+
+        button = findViewById(R.id.button1);
+        button.setOnClickListener(this);
+        editText = findViewById(R.id.textview1);
+
+    }
+
+
+
+
+        @Override
+    public void onClick(View v) {
+        if (v == button){
+            editText.setText("押した");
+        }
     }
 }
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_main.xml b/app/src/main/res/layout/activity_main.xml
index c052e59..44003e4 100644
--- a/app/src/main/res/layout/activity_main.xml
+++ b/app/src/main/res/layout/activity_main.xml
@@ -1,22 +1,27 @@
 <?xml version="1.0" encoding="utf-8"?>
-<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
     xmlns:app="http://schemas.android.com/apk/res-auto"
     xmlns:tools="http://schemas.android.com/tools"
     android:layout_width="match_parent"
     android:layout_height="match_parent"
-    tools:context=".MainActivity">
+    tools:context=".MainActivity"
+    android:orientation="vertical">
 
-    <TextView
-        android:layout_width="wrap_content"
-        android:layout_height="wrap_content"
-        android:text="Hello World!"
-        app:layout_constraintBottom_toBottomOf="parent"
-        app:layout_constraintEnd_toEndOf="parent"
-        app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent" />
     <Button
-        android:layout_width="wrap_content"
+        android:id="@+id/button1"
+        android:text="押せよ"
+        android:textSize="50px"
+        android:layout_width="match_parent"
         android:layout_height="wrap_content"
         />
 
-</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file
+    <EditText
+        android:id="@+id/textview1"
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:textSize="100px"
+        android:hint="ここだよ"
+        android:text=""
+        />
+
+</LinearLayout>
\ No newline at end of file