immediateFuture 测试类

介绍

immediateFuture 是一个用于测试的工具类，它可以帮助程序员快速创建异步任务，并检查其执行结果。该类提供了简单而强大的方法，用于创建 Future 对象，并立即返回其结果。

使用方法

1. 导入 immediateFuture 类:

import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.Executors;
import com.github.javafaker.Faker;
import java.util.concurrent.CompletionStage;
import java.time.Duration;
import java.util.concurrent.atomic.AtomicInteger;
import java.util.concurrent.atomic.AtomicLong;
import java.util.concurrent.TimeUnit;
import java.util.List;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.stream.Collectors;
import java.util.concurrent.ThreadLocalRandom;
import java.util.concurrent.Callable;
import java.util.concurrent.CompletableFuture;
import java.util.concurrent.CompletionStage;
import java.util.concurrent.Executor;
import java.util.function.BiFunction;
import java.util.function.Supplier;
import java.util.Optional;
import java.util.Random;
import java.util.concurrent.ConcurrentHashMap;
import java.util.Collection;
import java.util.Collections;
import java.util.function.Function;
import java.util.concurrent.ForkJoinPool;

public class immediateFuture {
  ...
}

2. 使用 immediateFuture 创建异步任务:

immediateFuture future = new immediateFuture();
CompletableFuture<Integer> asyncTask = future.createAsyncTask();

3. 等待异步任务执行完成并获取结果:

try {
    int result = asyncTask.get();
    System.out.println("异步任务执行结果: " + result);
} catch (InterruptedException | ExecutionException e) {
    e.printStackTrace();
}

示例

以下是使用 immediateFuture 创建异步任务的示例代码:

import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;

public class Main {

    public static void main(String[] args) {
        immediateFuture future = new immediateFuture();
        CompletableFuture<Integer> asyncTask = future.createAsyncTask();
      
        try {
            int result = asyncTask.get();
            System.out.println("异步任务执行结果: " + result);
        } catch (InterruptedException | ExecutionException e) {
            e.printStackTrace();
        }
    }
}

返回markdown格式代码片段

import java.util.concurrent.CompletableFuture;
import java.util.concurrent.ExecutionException;
import java.util.concurrent.TimeUnit;

public class Main {

    public static void main(String[] args) {
        immediateFuture future = new immediateFuture();
        CompletableFuture<Integer> asyncTask = future.createAsyncTask();
      
        try {
            int result = asyncTask.get();
            System.out.println("异步任务执行结果: " + result);
        } catch (InterruptedException | ExecutionException e) {
            e.printStackTrace();
        }
    }
}