01. Save Records Sequentially

README.md

 # ForkJoin Framework 
+
+## Review Threads in Java
+
+### Why we need threads?
+Save 10 Records sequentially as Example.
+

src/main/java/Resource/Student.java

+package Resource;
+
+public class Student {
+
+   private String name;
+
+    public String getName() {
+        return name;
+    }
+
+    public Student(String name) {
+        this.name = name;
+    }
+}

src/main/java/Service/StudentService.java

+package Service;
+
+import Resource.Student;
+
+import java.util.UUID;
+
+public class StudentService {
+    public String saveStudent(Student std){
+        System.out.println("Saving Student: " + std.getName());
+        try {
+            Thread.sleep(1000);
+        } catch (InterruptedException e) {
+            throw new RuntimeException(e);
+        }
+        return UUID.randomUUID().toString();
+    }
+}

src/main/java/Threads.java

+public class Threads {
+}

src/test/java/ThreadTest.java

+import Resource.Student;
+import Service.StudentService;
+import junit.framework.TestCase;
+
+public class ThreadTest extends TestCase {
+
+    public void testStudent() {
+        long start = System.currentTimeMillis();
+
+        StudentService studentService = new StudentService();
+
+        for (int i = 1; i <= 10; ++i) {
+            Student std = new Student("student " + i);
+            studentService.saveStudent(std);
+        }
+        long execTime = System.currentTimeMillis() - start;
+        System.out.println("Execution Time: " + execTime + " ms");
+
+    }
+}