diff --git a/app/src/main/java/com/example/oplogy/MainActivity.java b/app/src/main/java/com/example/oplogy/MainActivity.java
index 7513bcf..a45408c 100644
--- a/app/src/main/java/com/example/oplogy/MainActivity.java
+++ b/app/src/main/java/com/example/oplogy/MainActivity.java
@@ -23,6 +23,8 @@ import java.util.concurrent.Executors;
 
 public class MainActivity extends AppCompatActivity implements View.OnClickListener{
 
+    //
+
     //    ID作成のTextViewとImageView
     private TextView creatUUID;
     private ImageView imageUuid;
diff --git a/app/src/main/java/com/example/oplogy/SubmissionActivity.java b/app/src/main/java/com/example/oplogy/SubmissionActivity.java
index 3ae33e2..b29fd57 100644
--- a/app/src/main/java/com/example/oplogy/SubmissionActivity.java
+++ b/app/src/main/java/com/example/oplogy/SubmissionActivity.java
@@ -24,12 +24,14 @@ public class SubmissionActivity extends AppCompatActivity {
         super.onCreate(savedInstanceState);
         setContentView(R.layout.submission);
 
+        // 戻るボタンの処理
         ImageView backButton = findViewById(R.id.BackMain_fromSubmission);
         backButton.setOnClickListener(v -> {
             finish();
         });
 
 
+        // インテントから提出状況の生徒の数を取得
         studentNumbers=getIntent().getIntegerArrayListExtra("submissionStudents");
 
         recyclerView = findViewById(R.id.recyclerView);
@@ -37,6 +39,7 @@ public class SubmissionActivity extends AppCompatActivity {
         submissionAdapter = new SubmissionAdapter(students);
         recyclerView.setAdapter(submissionAdapter);
 
+        // 生徒のリストを取得
         fetchStudents();
     }
     private void fetchStudents() {
diff --git a/app/src/main/java/com/example/oplogy/SubmissionAdapter.java b/app/src/main/java/com/example/oplogy/SubmissionAdapter.java
index da80a5c..9206ac0 100644
--- a/app/src/main/java/com/example/oplogy/SubmissionAdapter.java
+++ b/app/src/main/java/com/example/oplogy/SubmissionAdapter.java
@@ -18,6 +18,7 @@ public class SubmissionAdapter extends RecyclerView.Adapter<SubmissionAdapter.St
 
         public StudentViewHolder(View view) {
             super(view);
+            // レイアウトファイルのTextViewを取得
             studentNumberTextView = view.findViewById(R.id.studentNumberTextView);
             statusTextView = view.findViewById(R.id.statusTextView);
         }
@@ -38,6 +39,7 @@ public class SubmissionAdapter extends RecyclerView.Adapter<SubmissionAdapter.St
 public void onBindViewHolder(StudentViewHolder holder, int position) {
     SubmissionStudent student = students.get(position);
     holder.studentNumberTextView.setText(String.valueOf(student.getStudentNumber()));
+    // 提出済みかどうかで表示を変える
     if (student.isSubmitted()) {
         holder.statusTextView.setText("提出済み");
         holder.statusTextView.setBackgroundColor(Color.BLACK);