Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

public class Main {

    public static boolean isAlphabetOrNumeric(String value) {
        try {
            byte[] b = value.getBytes();

            for (int i = 0; i < b.length; i++) {
                if (ascnum(b[i]) == false)
                    return false;
            }

            return true;
        } catch (Exception e) {
            return false;
        }
    }

    private static boolean ascnum(byte byt) {
        // Asc: 48 - 57 = '0' -'9'
        // Asc: 65-90 = 'A' - 'Z'
        // Asc: 97-122 = 'a' - 'z'
        if ((byt >= 48 && byt <= 57) == false && (byt >= 65 && byt <= 90) == false
                && (byt >= 97 && byt <= 122) == false)
            return false;
        else
            return true;
    }
}