Convert a string to a float in java [duplicate]

Question

Possible Duplicate:
java : convert float to String and String to float

I'm extracting some numbers from a string, these are being stored as another string. Is there a way to convert these strings into a float?

i tried float f = "string"; but this didnt work.

Thanks

SLaks · Accepted Answer · 2012-11-27 21:09:25Z

3

answered Nov 27, 2012 at 21:09

SLaks

891k182 gold badges1.9k silver badges2k bronze badges

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

Comments

RNJ · Accepted Answer · 2012-11-27 21:14:35Z

1

Try Float.parseFloat but it does throw a RuntimeException if it fails so this is one time I would recommend catching it.

try {
    Float.parseFloat("0.4")
} catch (NumberFormatException e){ 
  //input is not a float
}

If you want more precision then look at Double.parseDouble() or even the BigDecimal string constructor

answered Nov 27, 2012 at 21:14

RNJ

15.6k19 gold badges92 silver badges136 bronze badges

ixx · Accepted Answer · 2012-11-27 21:09:54Z

1

This way---: Float.parseFloat("0.4");

answered Nov 27, 2012 at 21:09

ixx

32.3k41 gold badges139 silver badges239 bronze badges