Main.java Source code

Introduction

Here is the source code for Main.java

Source

public class Main {

    public static void main(String[] args) throws Exception {
        String str = stringToHex("help");
        System.out.println(str);
        String str1 = convertHexToString(str);
        System.out.println(str1);
    }

    static String stringToHex(String str) {
        char[] chars = str.toCharArray();
        StringBuffer strBuffer = new StringBuffer();
        for (int i = 0; i < chars.length; i++) {
            strBuffer.append(Integer.toHexString((int) chars[i]));
        }
        return strBuffer.toString();
    }

    public static String convertHexToString(String hex) {

        StringBuilder sb = new StringBuilder();
        StringBuilder temp = new StringBuilder();

        for (int i = 0; i < hex.length() - 1; i += 2) {
            String output = hex.substring(i, (i + 2));
            int decimal = Integer.parseInt(output, 16);
            sb.append((char) decimal);
            temp.append(decimal);
        }
        return sb.toString();
    }

}