Java Lambda test

JavaLambdaTest.java

@Slf4j
public class JavaLambdaTest {

    public static void main(String[] args) {
        log.info("Hello");
        testNoArgsLambda();
        testWithArgsLambda();
    }

    private static void testNoArgsLambda() {
        Runnable task = () -> {
            log.info("runable get run");
        };
        Runnable task2 = () -> log.info("runable get run");
        task.run();
        task2.run();
    }

    private static void testWithArgsLambda() {
        BinaryOperator<Long> add = (Long x, Long y) -> x + y;
        BinaryOperator<Long> sub = getSub();
        log.info("add Lambda apply (1L,2L) = " + add.apply(1L, 2L));
        log.info("sub Lambda apply (1L,2L) = " + sub.apply(1L, 2L));
    }

    private static BinaryOperator<Long> getSub() {
        return (Long x, Long y) -> x - y;
    }


}