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Newsgroups: comp.lang.java.programmer
Date: Sun, 12 May 2019 06:28:34 -0700 (PDT)
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Subject: Re: assign lambda to functional interface
From: gk <srcjnu@gmail.com>
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Xref: csiph.com comp.lang.java.programmer:38961

On Saturday, May 11, 2019 at 10:28:36 AM UTC+5:30, gk wrote:
> Can we assign a expression into an interface like this ?
> 
> import java.util.function.Predicate;
>  
> public class Main { 
> 	public static void main(String[] args) 
> 	{ 
> 		// Creating predicate 
> 		Predicate<Integer> lesserthan = i -> (i < 18); // is it valid?
> 
> 		// Calling Predicate method 
> 		System.out.println(lesserthan.test(10)); 
> 	} 
> }

Does lambda expression always have to return boolean ?  or lambda can return anything ?
most example shows boolean return by lambda expression.