Q:

set the width of the button to the LinearLayout programmatically

I am trying to set the width of the button in the lila LinearLayout but I am getting it just like in the screenshot. How can I set the width for the button? I am facing another Problem the item number beside the checkboxes are a Little bit higher than the Level of the Checkbox. How can I configure that programmatically to set them to the same level ?
private void createRadioButton(final ArrayList<Integer> items) {

    final LinearLayout ll = (LinearLayout) findViewById(R.id.lila);
        for (int i = 0; i < items.size(); i++) {
        CheckBox cb = new CheckBox(this);
        cb.setText(items.get(i) + "\n");
        cb.setId(i + 10);
        ll.addView(cb);

    }

    Button btn = new Button(this);
    btn.setText("submit");
            // With this line below I am not getting the button displayed.
    //btn.setLayoutParams(new LinearLayout.LayoutParams(10, 40));
    ll.addView(btn);

}

Screenshot:

A:

About number displayed higher than checkbox.
In your code cb.setText(items.get(i) + "\n"); you are putting new line, so next to checkbox is diplayed number AND new line

