42 lines
979 B
Java
42 lines
979 B
Java
// threads/LambdasAndMethodReferences.java
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// (c)2016 MindView LLC: see Copyright.txt
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// We make no guarantees that this code is fit for any purpose.
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// Visit http://mindviewinc.com/Books/OnJava/ for more book information.
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import java.util.concurrent.*;
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class NotRunnable {
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public void go() {
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System.out.println("NotRunnable");
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}
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}
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class NotCallable {
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public Integer get() {
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System.out.println("NotCallable");
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return 1;
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}
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}
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public class LambdasAndMethodReferences {
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public static void main(String[] args)
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throws InterruptedException {
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ExecutorService exec =
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Executors.newCachedThreadPool();
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exec.submit(() -> System.out.println("Lambda1"));
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exec.submit(new NotRunnable()::go);
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exec.submit(() -> {
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System.out.println("Lambda2");
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return 1;
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});
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exec.submit(new NotCallable()::get);
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exec.shutdown();
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exec.awaitTermination(1, TimeUnit.SECONDS);
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}
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}
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/* Output:
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Lambda1
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NotRunnable
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Lambda2
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NotCallable
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*/
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