Hex en ligne en texte Decoder

I have this string: Hello world !! and I want to print it using Python as 48:65:6c:6c:6f:20:77:6f:72:6c:64:20:21:21.

hex() works only for integers.

How can it be done?

I've got this string containing multiple hexadecimal numbers:

let input = '\x01\x01\x02\x01';

I would like to see this transformed into: 1121 (the decimal representation of each hex number)

How would I go about this? I've tried numerous things, but the only output I get are some diamond shapes with a questionmark inside of it or syntax errors. Many thanks in advance!

What is the best way to convert a string to hex and vice versa in C++?

Example:

• A string like "Hello World" to hex format: 48656C6C6F20576F726C64
• And from hex 48656C6C6F20576F726C64 to string: "Hello World"

Say we have a byte[] array:

byte[] data = {10,10,1,1,9,8}

and I want to convert these values in to a hexadecimal string:

String arrayToHex = "AA1198"

How can I do this? Using Java language in IntelliJ. Keep in mind this is my first semester of coding, so I'm already feeling lost.

First I start with this method:

public static String toHexString(byte[] data)

In the problem I'm trying to solve, we get a string from a user input, which is then converted to a byte[] array, and from there must be converted back into a string in hexadecimal format. But for simplification purposes I am just trying to input my own array. So, here I have my array:

byte[] data = {10,10,1,1,9,8}

I know how to just print the byte array by just saying:

for (int i = 0; i < data.length; i++){  System.out.print(data[i]);}

which will have an output of:

10101198

but obviously this is not what I'm looking for, as I have to convert the 10s to As, and I need a String type, not just an output. I'm sorry I'm so vague, but I'm truly lost and ready to give up!

I have a file which is formatted in the following way:

0x10c3 0xad60660x10c7 0xad60660x10c1 0xad60660x10c5 0xad60660x10c3 0xad6066

I want to read the first value into an array input[] and the second into array param[].

I tried the following:

while(getline(f, line)){    stringstream ss(line);    getline(ss, input[i], ' ');    getline(ss, param[i]);}

The error I am receiving is the following error: no matching function for call to 'getline(std::stringstream&, uint16_t&, char)'

I am trying to save a string into a integer array. So, how do I save the string into an integer array.