Answers for "how to check whether string is digit or not in java"

Java

java is digit

The java.lang.Character.isDigit(char ch) is an inbuilt method in java
which determines whether a specified character is a digit or not.

   // two characters
        char c1 = 'A', c2 = '4';
  
        // Function to check if the character
        // is digit or not
        System.out.println(
            c1 + " is a digit -> "
            + Character.isDigit(c1));
        System.out.println(
            c2 + " is a digit -> "
            + Character.isDigit(c2));

Posted by: Guest on August-06-2021

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;
}

Posted by: Guest on August-10-2021

Source

Code answers related to "how to check whether string is digit or not in java"

Code answers related to "Java"

Java Answers by Framework

Browse Popular Code Answers by Language

Python

Javascript

Whatever

Shell/Bash

CSS

Html

PHP

SQL

Java

Answers for "how to check whether string is digit or not in java"

Code answers related to "how to check whether string is digit or not in java"

Code answers related to "Java"

Java Answers by Framework

Browse Popular Code Answers by Language

Popular Programming Languages

Advertisements

Company

Compilers

Help

Connect with us