title: how to add characters to character array
body: <p>i want add characters to a character array. my code is</p>
  
  <pre><code>char x[100];
  int i;
  void setup() {
  Serial.begin(115200);
  }
  void loop() {
  for ( i=0; i&lt;11;i++)
  {
    x[i]=(char)i;
  }
  Serial.println(strlen(x));
  for (i=0;i&lt;11;i++)
  {
    Serial.print(x[i]);
  }
  
  delay(1000);
  }
  </code></pre>
  
  <p>i am expecting the array to be x[0] = 0 ,x[1] = 1, x[2] = 2......x[10]=10</p>
  
  <p>but the array seems to be empty as <code>Serial.println(strlen(x));</code> returns 0 
  and  <code>Serial.print(x[i]);</code> prints nothing. 
  how do i add character to an array???</p>