Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

public class Main {
    public static boolean isHexString(String key) {
        for (int i = key.length() - 1; i >= 0; i--) {
            final char c = key.charAt(i);
            if (!(c >= '0' && c <= '9' || c >= 'A' && c <= 'F' || c >= 'a' && c <= 'f')) {
                return false;
            }
        }

        return true;
    }
}