ArrayList to String Without the spaces in Android Studio

Question

I am trying to convert this

ArrayList

to a

String

, but don't want the spaces between the numbers. This is what I have so far:

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);

}

This does not work and the spaces are still there. Please help me!

Answer 1

Try to replace

NumString.replaceAll("//s","");

to

NumString = NumString.replaceAll("\\s","");

ArrayList to String Without the spaces in Android Studio

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