StringSource source = new StringSource("Hello World!");

        try (InputStream is = source.getInputStream();
                Scanner scanner = new Scanner(is)) {
            assertEquals("Hello World!", scanner.nextLine());
        }
    }

    @Test
    void testGetLocation() {
        StringSource source = new StringSource("Hello World!");
        assertEquals("(memory)", source.getLocation());

package bufio_test

import (
	"bufio"
	"bytes"
	"fmt"
	"os"
	"strconv"
	"strings"
)

func ExampleWriter() {
	w := bufio.NewWriter(os.Stdout)
	fmt.Fprint(w, "Hello, ")
	fmt.Fprint(w, "world!")
	w.Flush() // Don't forget to flush!
	// Output: Hello, world!
}

func ExampleWriter_AvailableBuffer() {
	w := bufio.NewWriter(os.Stdout)
	for _, i := range []int64{1, 2, 3, 4} {
		b := w.AvailableBuffer()

.btn-tool{color:rgba(31,45,61,.8)}.bg-gradient-yellow>.card-header .btn-tool:hover,.bg-yellow>.card-header .btn-tool:hover,.card-yellow:not(.card-outline)>.card-header .btn-tool:hover{color:#1f2d3d}.card.bg-gradient-yellow .bootstrap-datetimepicker-widget .table td,.card.bg-gradient-yellow .bootstrap-datetimepicker-widget .table th,.card.bg-yellow .bootstrap-datetimepicker-widget .table td,.card.bg-yellow .bootstrap-datetimepicker-widget .table th{border:none}.card.bg-gradient-yellow .bootstrap-datetimepicker-widget...

     */
    public enum Color {
        BLACK(0, "BLACK"),
        RED(1, "RED"),
        GREEN(2, "GREEN"),
        YELLOW(3, "YELLOW"),
        BLUE(4, "BLUE"),
        MAGENTA(5, "MAGENTA"),
        CYAN(6, "CYAN"),
        WHITE(7, "WHITE"),
        DEFAULT(9, "DEFAULT");

        private final int value;

ine) > .card-header a.active {\n  color: #1f2d3d;\n}\n\n.card-yellow.card-outline {\n  border-top: 3px solid #ffc107;\n}\n\n.card-yellow.card-outline-tabs > .card-header a:hover {\n  border-top: 3px solid #dee2e6;\n}\n\n.card-yellow.card-outline-tabs > .card-header a.active,\n.card-yellow.card-outline-tabs > .card-header a.active:hover {\n  border-top: 3px solid #ffc107;\n}\n\n.bg-yellow > .card-header .btn-tool,\n.bg-gradient-yellow > .card-header .btn-tool,\n.card-yellow:not(.card-outline) > .card-header...

package org.apache.maven.embedder;

/**
 * Hello world!
 *
 */
public class App
{
    public static void main( String[] args )
    {
        System.out.println( "Hello World!" );
    }

    return new Builder<>();
  }

  /**
   * Verifies that {@code rowKey}, {@code columnKey} and {@code value} are non-null, and returns a
   * new entry with those values.
   */
  static <R, C, V> Cell<R, C, V> cellOf(R rowKey, C columnKey, V value) {
    return immutableCell(
        checkNotNull(rowKey, "rowKey"),
        checkNotNull(columnKey, "columnKey"),
        checkNotNull(value, "value"));
  }

  /**

<span style="color: green;">INFO</span>:     Uvicorn running on http://127.0.0.1:8000 (Press CTRL+C to quit)
```

</div>

A resposta seria algo como:

```JSON
{
    "message": "Hello World",
    "root_path": "/api/v1"
}
```

### Configurando o `root_path` na aplicação FastAPI

Hello World!...

```txt
Hello, World from Flask!
```

그리고 다음으로 이동하면 <a href="http://localhost:8000/v2" class="external-link" target="_blank">http://localhost:8000/v2</a> Flask의 응답을 볼 수 있습니다:

```JSON
{
    "message": "Hello World"
}