I am trying to convert this
ArrayList
String
ArrayList<String> arrayList = new ArrayList<String>();
String NumberRightString = "";
String ButtonText = "";
public void OnClick (View v) {
Button button = (Button) v;
String ButtonText = button.getText().toString();
arrayList.add(ButtonText);
StringBuilder sb = new StringBuilder();
for (Object obj : arrayList) {
sb.append(obj.toString());
sb.append("\t");
}
String NumString = sb.toString();
NumString.replaceAll("//s","");
textView.setText(NumString + "/" + number);
}
Try to replace
NumString.replaceAll("//s","");
to
NumString = NumString.replaceAll("\\s","");