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Android Build a Weather App (2015) Working with JSON Setting CurrentWeather from JSON

Posted by Taylor Bryant
Taylor Bryant
7,395 Points

Why can we not string methods with our CurrentWeather Object just like the AlertDialog.Builder Object from earlier?

Question says it all. If you could please explain why and also how we could allow our own class to allow its objects to string methods that would be wonderful.

For example:

// Non string of methods

currentWeather.setTime(long);

currentWeather.setTemp(double);

//Stringing of methods

currentWeather.setTime(long).setTemp(double);

1 Answer

Joe Brown
Joe Brown
21,465 Points
Joe Brown
Joe Brown
21,465 Points

You can design the class to follow a design pattern that allows you to do that. Look up the "Builder" pattern for java and you will get the idea. Android uses it in different places, like the AlertDialog you mentioned. Like any pattern it should be used only as needed. If you happen to have access to the book Effective Java he explains it well with an example in item 5 I think it is .