#15 - Java

Author: h4ckxel

Roadmap/15 - ASINCRONÍA/java/h4ckxel.java

@@ -0,0 +1,73 @@
+public class h4ckxel{
+
+public static void main(String[] args) {
+    try {
+        exercise();
+        extra();
+
+    } catch (Exception e) {
+        System.out.println(e.getMessage());
+    }
+}
+
+private static Thread asynFunction(String funcitonName, int duration) {
+    return new Thread(() -> {
+
+    long startTime = System.currentTimeMillis();
+    System.out.println(
+        funcitonName + " started. Time: " + startTime +
+              " milliseconds. Should take " + duration * 1000 + " milliseconds.");
+    try {
+        Thread.sleep((long) duration * 1000);
+    } catch (InterruptedException e) {
+        System.out.println(e.getMessage());
+    }
+
+    long endTime = System.currentTimeMillis();
+    System.out.println(funcitonName + " has done. Time: " + (endTime - startTime) + " milliseconds");
+
+    });
+}
+
+private static void exercise() {
+    System.out.println("EXERCISE:");
+    Thread thread = asynFunction("my function1", 20);
+    thread.start();
+    try {
+
+    thread.join();
+    } catch (InterruptedException e) {
+    e.printStackTrace();
+    }
+
+}
+
+private static void extra() {
+
+    System.out.println();
+    System.out.println("EXTRA:");
+
+    Thread threadA = asynFunction("Function A", 1);
+    Thread threadB = asynFunction("Function B", 2);
+    Thread threadC = asynFunction("Function C", 3);
+    Thread threadD = asynFunction("Function D", 1);
+
+    try {
+    threadA.start();
+    threadB.start();
+    threadC.start();
+
+    threadA.join(5000);
+    threadB.join(5000);
+    threadC.join(5000);
+
+    System.out.println("Starting Function D...");
+    threadD.start();
+    threadD.join();
+
+    } catch (InterruptedException e) {
+    System.out.println(e.getMessage());
+    }
+
+    }
+}