java how to check string is number
public static boolean isNumeric(String strNum) {
if (strNum == null) {
return false;
}
try {
double d = Double.parseDouble(strNum);
} catch (NumberFormatException nfe) {
return false;
}
return true;
}how to check a number in string
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 classCopyright © 2021 Codeinu
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