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 I convert Serial.read() into a string so I can do if x == "testing statements", etc.?

Answer 1

Unlimited string readed:

String content = ""; char character;      while(Serial.available()) {      character = Serial.read();      content.concat(character); }        if (content != "") {      Serial.println(content); } 

Answer 2

From Help with Serial.Read() getting string:

char inData[20]; // Allocate some space for the string char inChar=-1; // Where to store the character read byte index = 0; // Index into array; where to store the character  void setup() {     Serial.begin(9600);     Serial.write("Power On"); }  char Comp(char* This) {     while (Serial.available() > 0) // Don't read unless                                        // there you know there is data     {        if(index < 19) // One less than the size of the array        {            inChar = Serial.read(); // Read a character            inData[index] = inChar; // Store it            index++; // Increment where to write next            inData[index] = '\0'; // Null terminate the string        }     }      if (strcmp(inData,This)  == 0) {        for (int i=0;i<19;i++) {             inData[i]=0;        }        index=0;        return(0);     }     else {        return(1);     } }  void loop() {     if (Comp("m1 on")==0) {         Serial.write("Motor 1 -> Online\n");     }     if (Comp("m1 off")==0) {        Serial.write("Motor 1 -> Offline\n");     } }