how I can make the scroll in this case just below the line in android by java

You can use a scrollview inside the main layout (e.g. ConstraintLayout or RelativeLayout) which also contains the topview.

<androidx.constraintlayout.widget.ConstraintLayout
 ...">

    <TextView
       ....
        />

    <ScrollView
       ....
        >

        <LinearLayout
           .... />
    </ScrollView>
</androidx.constraintlayout.widget.ConstraintLayout>

Can you try this

 <androidx.core.widget.NestedScrollView xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent"
xmlns:app="http://schemas.android.com/apk/res-auto">

<androidx.constraintlayout.widget.ConstraintLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent">
    
    <RelativeLayout
        android:id="@+id/relative_layout_first"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        
        <!--Your 1st layout components here-->

    </RelativeLayout>
    
    <ScrollView
        app:layout_constraintTop_toBottomOf="@id/relative_layout_first"
        app:layout_constraintStart_toStartOf="parent"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">
        
        <RelativeLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content">

            <!--Your 2nd layout components here-->
            
        </RelativeLayout>
        
    </ScrollView>
    
    
</androidx.constraintlayout.widget.ConstraintLayout>

</androidx.core.widget.NestedScrollView>