Convert serial.read() into a useable string using Arduino?

Question

I\'m using two Arduinos to sent plain text strings to each other using newsoftserial and an RF transceiver.

Each string is perhaps 20-30 characters in length. How do

Answer 1

String content = "";
char character;

if(Serial.available() >0){
//reset this variable!
  content = "";
 //make string from chars
 while(Serial.available()>0) {
   character = Serial.read();
   content.concat(character);
 }
 //send back   
 Serial.print("#");
 Serial.print(content);
 Serial.print("#");
 Serial.flush();
}