Complete multithreading java task

java-advanced-ru/multithreading-java/.gitignore

@@ -1,2 +1,4 @@
 .gradle/
 build/
+caches/
+.idea/

java-advanced-ru/multithreading-java/src/main/java/exercise/App.java

@@ -1,5 +1,6 @@
 package exercise;
 
+import java.util.HashMap;
 import java.util.Map;
 import java.util.logging.Logger;
 import java.util.logging.Level;
@@ -8,6 +9,23 @@ class App {
     private static final Logger LOGGER = Logger.getLogger("AppLogger");
 
     // BEGIN
-
+    public static Map<String, Integer> getMinMax(int[] array) {
+        var maxThread = new MaxThread(array);
+        var minThread = new MinThread(array);
+        var result = new HashMap<String, Integer>();
+        maxThread.start();
+        minThread.start();
+        try {
+            maxThread.join();
+            minThread.join();
+        } catch (InterruptedException e) {
+            throw new RuntimeException(e);
+        }
+        var max = maxThread.getMax();
+        var min = minThread.getMin();
+        result.put("max", max);
+        result.put("min", min);
+        return result;
+    }
     // END
 }

java-advanced-ru/multithreading-java/src/main/java/exercise/MaxThread.java

@@ -1,5 +1,27 @@
 package exercise;
 
+import java.util.Arrays;
+
 // BEGIN
+public class MaxThread extends Thread{
+    private final int[] array;
+
+    private int max;
+
+    public MaxThread(int[] array) {
+        this.array = array;
+    }
+    @Override
+    public void run() {
+        System.out.println("Thread " + this.getName() + " started");
+        max = Arrays.stream(array)
+                .max()
+                .orElse(0);
+        System.out.println("Thread " + this.getName() + " finished");
+    }
 
+    public int getMax() {
+        return max;
+    }
+}
 // END

java-advanced-ru/multithreading-java/src/main/java/exercise/MinThread.java

@@ -1,5 +1,27 @@
 package exercise;
 
+import java.util.Arrays;
+
 // BEGIN
+public class MinThread extends Thread {
+    private final int[] array;
+
+    private int min;
+
+    public MinThread(int[] array) {
+        this.array = array;
+    }
+    @Override
+    public void run() {
+        System.out.println("Thread " + this.getName() + " started");
+        min = Arrays.stream(array)
+                .min()
+                .orElse(0);
+        System.out.println("Thread " + this.getName() + " finished");
+    }
 
+    public int getMin() {
+        return min;
+    }
+}
 // END