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Android Build a Weather App (2015) Working with JSON Cleaning Up the Date and Time


According to the API documentation for Date, format() returns an item of StringBuffer type. What is StringBuffer and how is it different from String?

1 Answer

StringBuffer is faster than String when it comes to concatenations, so if you have a lot of concats. to do then you should use StringBuffer

StringBuffer sb = new StringBuffer("Mukul");
for(int i =0 ; i<50 ; i++){
sb.append(" Gupta");
} // This would be faster than myString+=" Gupta";
String longName = sb.toString();  // to convert from StringBuffer to String use toString() method