Criando a classe PrincipalComBusca

import java.io.IOException;
import java.net.URI;
import java.net.http.HttpClient;
import java.net.http.HttpRequest;
import java.net.http.HttpResponse;
import java.util.Scanner;

public class PrincipalComBusca {

    public static void main(String[] args) throws IOException, InterruptedException {
        Scanner leitura = new Scanner(System.in);
        System.out.println("Digite um filme para busca" );
        String busca = leitura.nextLine().replace( " ", "+");

        String endereco = "https://www.omdbapi.com/?t=" + busca + "&apikey=digiteapkey";

        HttpClient client = HttpClient.newHttpClient();
        HttpRequest request = HttpRequest.newBuilder()
                .uri(URI.create(endereco))
                .build();

        HttpResponse<String> response = client
                .send(request, HttpResponse.BodyHandlers.ofString());

        System.out.println("\n Resultado da busca:");
        System.out.println(response.body());
    }
}