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package lambda.lambda4; public class TriMain { public static void main(String[] args) { TriFunction triFunction = (a, b, c) -> a*b*c; System.out.println("triFunction.apply(1,2,3) = " + triFunction.apply(1, 2, 3)); } @FunctionalInterface interface TriFunction { R apply(A a, B b, C c); } }