Transform array into string

Projects Programming
1

Hello world
I need some help with my code.

#include <SPI.h>
#include<SPIMemory.h>
SPIFlash flash;

int val[20];

void setup() {
  Serial.begin(115200);
  flash.begin();

}

void loop() {
  for(int i = 0; i <= 20; i++){
    val[i] = flash.readByte(i);
  }
  Serial.println(val[1]);
  delay(10000);  

}

Arduino uno reads data from flash chip and the values are saved in array (int val[20]). Data here looks like this:
val[1] = 64
val[2] = 176
val[3] = 14
...
val[20] = 255

I want to transform this array data to look like this:
64-176-14-...255
This value could be some different type (String).
There must be a special character to mark place between two values. In my case this is "-"
Is there any idea how to do this?

Thank you so much

2

Easy, but what happens next to the data? Where is it going once it has been formatted? There is little point changing the array into a string and then printing it to somewhere. Might as well cut out the middle man.

Also it's important to know that with an array like int val[20], you must not access val[20]. The highest index is val[19] and the first index is val[0], not val[1].

3

Read the documentation for the String class perhaps?