Create float from String

Question

I have a regex \d+(?:[.,]\d+ that matches decimal strings with either dot or comma, like 123.123 or 123,123 so the value is valid.

Now my problem is to generate a Float value from the String which is either 123.123 or 123,123

Float#parseFloat(). Don't know if it'll work for the comma, though... — awksp
– awksp, Commented Jun 12, 2014 at 6:01
I suggest you not use Float or float if you can avoid it, try using double — Peter Lawrey
– Peter Lawrey, Commented Jun 12, 2014 at 7:01

A Paul · Accepted Answer · 2014-06-12 06:06:48Z

1

You can use the below code.

String val = "123.123 ";
float f = Float.parseFloat(val);

String val = "123,123 "; // if other char(like comma) come, you can also write a regex to replace those set of char
val = val.replace(",",".");// assuming comma is used for decimals
float f = Float.parseFloat(val);

edited Jun 12, 2014 at 6:06

answered Jun 12, 2014 at 6:02

A Paul

8,3113 gold badges33 silver badges65 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

awksp Over a year ago

Hmmm, wonder if the comma here is being used for a thousands separator or a decimal place...

Christian Tapia Over a year ago

I'm almost sure it's used for decimals.

Collectives™ on Stack Overflow

Create float from String

1 Answer 1

2 Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

1 Answer 1

2 Comments

Your Answer

Sign up or log in

Post as a guest

Related