jbanana: Badly drawn banana (Default)
[personal profile] jbanana
Traditional: EventQueue.invokeLater(new Runnable(){@Override public void run(){doThings();}});
Hmm - lots of syntax to get those things done later.

Lambda style: EventQueue.invokeLater(()->doThings());
Nicer (but identical).

When you make a lambda in Java, it's an anonymous instance of some interface. But how does it know which interface? It matters, because the lambda has to have the right params, and it has to implement the right method (even though you didn't say what the method was).

Duh, stupid! The compiler figures it out from the context. "I need a Runnable here, so that's what this lambda must be." And now I'm not thinking "How can this possibly work?"

Edit: usual excellent stuff on the basics of this from Jenkov

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