Question : check have string have just numbers
Answered by : awful-coder
String numbers = "6969696969";
boolean check_n = numbers.matches("[0-9]+"); // true
String notNumber = "0123meowGOGO88l";
boolean check_s = notNumber.matches("[0-9]+"); // falseSource : | Last Update : Tue, 01 Mar 22
Question : How to check if a string is numeric
Answered by : horrible-hamerkop-zey558kczdef
String value = 12345
StringUtils.isNumeric(value) //returns trueSource : https://commons.apache.org/proper/commons-lang/javadocs/api-release/org/apache/commons/lang3/StringUtils.html#isNumeric-java.lang.CharSequence- | Last Update : Fri, 20 May 22
Question : how to check a number in string
Answered by : abhishek-nr59jygk179t
To find whether a given string contains a number,
convert it to a character array and find whether
each character in the array is a digit using the isDigit()
method of the Character classSource : https://stackoverflow.com/questions/19859282/check-if-a-string-contains-a-number | Last Update : Mon, 29 Jun 20
Question : check if the given string is a number
Answered by : aayushyamaan-shah
//Add this to your code and call
static private boolean isMyNumber(String s){ try{ Integer.parseInt(s); return true; }catch (Exception e){ return false; } }Source : | Last Update : Tue, 05 Jan 21
Question : check if string can be a number and then make a number
Answered by : jeffrey-skinner
if(Number(myNumber) != NaN){ myNumber = Number(myNumber);
}Source : | Last Update : Fri, 29 Jan 21