convert string to float in android

Question

I am trying to convert string to float but I couldnt succeed.

here is my code

float f1 = Float.parseFloat("1,9698");

the error it gives is

Invalid float  "1,9698";

why is it doing this? it is a valid float

Answer 1

You are using a comma when you should be using a period

float f1 = Float.parseFloat("1.9698");

That should work.

Answer 2

You have added comma instead of '.'

Do like this.

float f1 = Float.parseFloat("1.9698");

Answer 3

Float number;
String str=e1.getText().toString();
number = Float.parseFloat(str);

Or In one line

float float_no = Float.parseFloat("3.1427");

Answer 4

Float total = Float.valueOf(0);
try
{
    total = Float.valueOf(str);
}
catch(NumberFormatException ex)
{
    DecimalFormat df = new DecimalFormat();
    Number n = null;
    try
    {
        n = df.parse(str);
    } 
    catch(ParseException ex2){ }
    if(n != null)
        total = n.floatValue();
}

Answer 5

I suggest you use something like this:

String text = ...;
text = text.replace(",", ".");

if(text.length() > 0) {
    try {
        float f = Float.parseFloat(text);
        Log.i(TAG, "Found float " + String.format(Locale.getDefault(), "%f", f));
    } catch (Exception e) {
        Log.i(TAG, "Exception " + e.toString());
    }
}