Para "síncrono" (contrário de "assíncrono") também é utilizado o termo "sequencial", porquê o computador / programa segue todos os passos, em sequência, antes de trocar para uma tarefa diferente, mesmo se alguns passos envolvam esperar.

### Concorrência e hambúrgueres

          }
        };
    Executor sequential1 = newSequentialExecutor(delegate);
    Executor sequential2 = newSequentialExecutor(delegate);
    assertThat(sequential1.toString()).contains("theDelegate");
    assertThat(sequential1.toString()).isNotEqualTo(sequential2.toString());
    String[] whileRunningToString = new String[1];
    sequential1.execute(
        new Runnable() {
          @Override

 * This service provides customized URL fetching strategies including sequential and random ordering
 * based on crawling configuration parameters.
 */
public class FessUrlQueueService extends OpenSearchUrlQueueService {

    private static final Logger logger = LogManager.getLogger(FessUrlQueueService.class);

    /** Configuration value for sequential URL processing order */

Para el "sincrónico" (contrario al "asíncrono") comúnmente también usan el término "secuencial", porque la computadora / programa sigue todos los pasos en secuencia antes de cambiar a una tarea diferente, incluso si esos pasos implican esperar.

### Concurrencia y Hamburguesas

        void testFileActionRemovedByDelete() {
            assertEquals(0x00000009, FileNotifyInformation.FILE_ACTION_REMOVED_BY_DELETE);
        }

        @Test
        @DisplayName("Verify action constants are sequential and unique")
        void testActionConstantsAreUnique() {
            int[] actions = { FileNotifyInformation.FILE_ACTION_ADDED, FileNotifyInformation.FILE_ACTION_REMOVED,

        assertEquals(999L, item.getId());

        // Verify direct field access
        assertEquals(999L, item.id);
    }

    public void test_sequentialIdAssignment() {
        // Test sequential ID assignment pattern
        TestDictionaryItem[] items = new TestDictionaryItem[5];

        for (int i = 0; i < items.length; i++) {
            items[i] = new TestDictionaryItem();
            items[i].id = i + 1;

   * same result.
   */
  enum CollectStrategy {
    /** Get one accumulator and accumulate the elements into it sequentially. */
    SEQUENTIAL {
      @Override
      final <T extends @Nullable Object, A extends @Nullable Object, R extends @Nullable Object>
          A result(Collector<T, A, R> collector, Iterable<T> inputs) {

        assertNotNull(retrieved);
        assertEquals(engine, retrieved);
    }

    // Test concurrent-like scenario (sequential but simulating concurrent behavior)
    public void test_add_multipleSameNameSequential() {
        TestScriptEngine engine1 = new TestScriptEngine("v1");
        TestScriptEngine engine2 = new TestScriptEngine("v2");

package okhttp3.internal.concurrent

import java.util.concurrent.CountDownLatch
import java.util.concurrent.RejectedExecutionException
import okhttp3.internal.okHttpName

/**
 * A set of tasks that are executed in sequential order.
 *
 * Work within queues is not concurrent. This is equivalent to each queue having a dedicated thread
 * for its work; in practice a set of queues may share a set of threads to save resources.
 */

import java.util.concurrent.Executors
import java.util.concurrent.TimeUnit
import java.util.logging.Logger
import okhttp3.TestUtil.threadFactory

/**
 * Runs a [TaskRunner] in a controlled environment so that everything is sequential and
 * deterministic.
 *
 * This class ensures that at most one thread is running at a time. This is initially the JUnit test
 * thread, which yields its execution privilege while calling [runTasks], [runNextTask], or