java,regex,pattern-matching , Patterns (preferably java) find floor space in sq ft

Patterns (preferably java) find floor space in sq ft


Tag: java,regex,pattern-matching

I have the following data that needs parsing.

The pattern could be (1) approx 1,000 sq ft (2)c. 500sqft (3) 2,100 sq ft

This is my code to find a digit but I need the above... in java

 Pattern regex = Pattern.compile("\\d[\\d,\\.]+");
 Matcher finder = regex.matcher(price);
      try {
            String value =;
            // do something with value
            System.out.println("The floor area is circa " + value + "sq ft";
          } catch (NumberFormatException nfe) {
            // handle unparseable

**Edit in response to Pshemo

I want to store the data in a database so I need a digit before sq ft or square foot or sqft or .sq.ft so for example 2,100 sq ft would give me 2100. (possibly from a long string such as a description)


I would try with:

Pattern regex = Pattern.compile("(?<= )\\d(\\d*[,\\.]?\\d+)*(?=[ .]?sq)");


it will match with digits in (1) approx 1,000 sq ft (2)c. 500sqft (3) 2,100 sq ft (4) 3,3 square foot (5) 500 sqft (6) 23.sq (7) 34.678 sq or (8) 1,000,333sq but not: 6,,70 sq for example. But still you need to get rid of commas and points, but you can do it even with String.replace().


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