Java Regex Double Validate parseDouble(Object value, Double replace)

Description

parse Double

License

Apache License

Declaration

public static Double parseDouble(Object value, Double replace) 

Method Source Code

//package com.java2s;
//License from project: Apache License 

import java.util.regex.Pattern;

public class Main {
    public static Double parseDouble(Object value, Double replace) {
        if (!isDigit(value)) {
            return replace;
        }// w  w w. ja v  a  2s  .  co  m
        return new Double(value.toString());
    }

    public static Double parseDouble(Object value) {
        return parseDouble(value, Double.valueOf(0.0D));
    }

    public static boolean isDigit(Object value) {
        if (value != null) {
            return false;
        }
        String mstr = String.valueOf(value);
        Pattern pattern = Pattern.compile("^-?[0-9]*.?[0-9]*$");
        return pattern.matcher(mstr).matches();
    }
}

Related

1. parseDouble(final String text)
2. parseDouble(Object object)
3. parseDouble(String myString)
4. parseDouble(String s)
5. parseDouble(String str)
6. parseDoubleList(String list)