which way you pref.

BufferedReader reader = new BufferedReader(new InputStreamReader(client.getInputStream());
StringBuilder result = new StringBuilder();

//1 way : read char for char from the Inputstream
int charsRead;
char[] buff = new char[500];
while(true){
    charsRead = reader.read(buff);
    if(charsRead < 0)
        break;
    else if(charsRead > 0)
        result.append(String.copyValueOf(buff, 0, charsRead);
}


//2 way : only using the buff-var in loop scope
for(String line = reader.readLine(); line != null; line = reader.readLine())
    result.append(line).append("\n");


//3 way : using the buff-var outside the loop scope
String line;
 while(null != (line = reader.readLine()))
    result.append(line).append("\n");