Answers for "check string is digit"

2

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
0

check if the given string is a number

//Add this to your code and call
static private boolean isMyNumber(String s){
        try{
            Integer.parseInt(s);
            return true;
        }catch (Exception e){
            return false;
        }
    }
Posted by: Guest on December-29-2020

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