printing a variable's value and a string together

Question

I am trying to display the output hello 3. How can i achieve this with Serial.print() method defined in SoftwareSerial.h library. I have the following code.

#include <SoftwareSerial.h>

int a = 3;
void setup(){
    Serial.begin(9600);
    Serial.print("hello"+a);
}

void loop(){


}

score 0 · Answer 1 · answered Apr 19 '17 at 00:15

0

The easiest way is with multiple invocations. That way you don't have to worry about type conversion.

Serial.print("hello");
Serial.print(a);

answered Apr 19 '17 at 00:15

Ignacio Vazquez-Abrams

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Ok thank for your replay, but is there any other way?@ignacio – wokoro douye samuel Apr 19 '17 at 00:19
Sure, lots of ways. But they're slow and clumsy. – Ignacio Vazquez-Abrams Apr 19 '17 at 00:20

score 0 · Answer 2 · edited Apr 19 '17 at 07:58

0

void setup(){

    Serial.begin(9600);
    string somestring = "hello" + " " + "3";
    Serial.print(somestring);
}

edited Apr 19 '17 at 07:58

goto

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answered Apr 19 '17 at 00:21

Yajie Niu

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I dont want the ** 3** to be printed directly, i want it via the variable **a**. – wokoro douye samuel Apr 19 '17 at 00:25

printing a variable's value and a string together

2 Answers2