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By: a guest on
Jul 29th, 2012 | syntax:
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android parsing negative number strings
-123.23
(123.23)
123.23-
Double newNumber = 0;
if(number.charAt(i).isDigit()){
//parse numeber here using WarrenFaiths method and place the int or float or double
newNumber = Double.valueOf(number);
}else{
Boolean negative = false;
if(number.startsWith("-") || number.endsWith("-")){
number.replace("-", "");
negative = true;
}
if(number.startsWith("(") || number.endsWith(")"){
number.replace("(", "");
number.replace(")", "");
}
//parse numeber here using WarrenFaiths method and place the float or double
newNumber = Double.valueOf(number);
if(negative){
newNumber = newNumber * -1;
}
}
private Double RegNumber(String sIn) {
Double result = 0E0;
Pattern p = Pattern.compile("^\-?([0-9]{0,3}(\,?[0-9]{3})*(\.?[0-9]*))"); // -1,123.11
Matcher m = p.matcher(sIn);
if (m.matches()) {
result = Double.valueOf(sIn);
} else {
Pattern p1 = Pattern.compile("^\(?([0-9]{0,3}(\,?[0-9]{3})*(\.?[0-9]*))\)?$"); // (1,123.22)
Matcher m1 = p1.matcher(sIn);
if (m1.matches()) {
String x[] = sIn.split("(\({1})|(\){1})"); // extract number
result = Double.valueOf("-" + x[1]);
} else {
Pattern p2 = Pattern.compile("([0-9]{0,3}(\,?[0-9]{3})*(\.?[0-9]*))\-$"); // 1,123.22-
Matcher m2 = p2.matcher(sIn);
if (m2.matches()) {
String x[] = sIn.split("(\-{1})"); // extract number
result = Double.valueOf("-" + x[0]);
} else {
result = 99999999E99; // error, big value
}
}
}
return result;
}