Oracle Java SE 17 Developer (1Z0-829) Practice Test
Gana confianza para Oracle Java SE 17 Developer (1Z0-829). Practica los conceptos, comprende las respuestas y refuerza tus conocimientos pregunta a pregunta.
Probar una preguntaDescripción y detalles del examen
The Oracle Certified Professional: Java SE 17 Developer (Exam 1Z0-829) is the definitive credential for validating advanced proficiency in the Java programming language. This certification assesses a developer's ability to design, implement, and maintain robust, scalable applications using the latest features of Java SE 17. It signifies mastery beyond foundational concepts, focusing on sophisticated topics like concurrency, modular design, and modern API usage. Earning this certification demonstrates to employers and peers a deep, practical understanding of Java's evolution, including Records, Sealed Classes, and enhanced Streams API. It is recognized globally as a benchmark for senior developer roles, system architects, and technical leads, confirming that the holder possesses the skills necessary to build high-performance, secure, and maintainable enterprise-level software. The exam rigorously tests applied knowledge, ensuring certified professionals can translate language features into effective solutions.
Preguntas de Muestra
Elige una respuesta y consulta la explicación para ver cómo funciona la práctica.
What is printed? class A { static void m() { System.out.print("A"); } } class B extends A { static void m() { System.out.print("B"); } } A ref = new B(); ref.m();
A counter is declared: var c = new java.util.concurrent.atomic.AtomicInteger(0); System.out.println(c.incrementAndGet()); Which statement is correct?
A parser uses: var fmt = java.time.format.DateTimeFormatter.ISO_LOCAL_DATE; var d = java.time.LocalDate.parse("2025-06-01", fmt); System.out.println(d.getMonthValue()); What is printed?
A Thread object is used: Thread t = new Thread(() -> {}); t.start(); t.start(); What happens on the second start call?
Which catch order is valid? try { read(); } catch ( /* first */ ) { } catch ( /* second */ ) { }
Oportunidades profesionales y salario
Los rangos son cifras del mercado de EE. UU. salvo que se muestre un rango local.
Qué temas cubre este examen
Usa las ponderaciones publicadas de los dominios para planificar tu estudio. Los resultados de práctica no predicen tu puntuación en el examen de certificación.