How to pass double value to a textview in Android

In Android, assign a double to a textView:

Use Double.toString:

result = number1/number2    
String stringdouble= Double.toString(result);
textview1.setText(stringdouble));

or you can use the NumberFormat:

Double result = number1/number2;
NumberFormat nm = NumberFormat.getNumberInstance();
textview1.setText(nm.format(result));

To force for 3 units precision:

private static DecimalFormat REAL_FORMATTER = new DecimalFormat("0.###");
textview1.setText(REAL_FORMATTER.format(result));

The best way is

   String finalresult = String.valueof(result); 
   textview.setText(finalresult);

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