Oracle Certified Professional Java SE 17 Developer Practice Test
The Oracle Certified Professional Java SE 17 Developer (OCP 17) certification is the industry's premier validation of advanced Java programming skills and deep platform knowledge. This credential demonstrates a developer's comprehensive mastery of Java SE 17, including modern language features, robust application design principles, and the ability to build secure, high-performance, and maintainable applications. Earning this certification signifies more than just passing a test; it represents a professional commitment to excellence and a proven ability to handle complex development tasks. In a competitive technology landscape, OCP 17 distinguishes candidates by verifying their proficiency in critical areas such as concurrency management, modular application design with the Java Platform Module System (JPMS), functional programming with streams and lambdas, and advanced API usage. It is recognized globally by employers, consultancies, and enterprises as a benchmark for senior developer roles, technical leadership, and architectural contributions. Holding this certification validates that a professional can effectively leverage the full power of Java SE 17 to solve real-world business problems.
Preguntas de Muestra
Prueba algunas preguntas para ver cómo es el examen completo.
A locale-aware app uses: var price = new java.math.BigDecimal("1.00"); var nf = java.text.NumberFormat.getNumberInstance(java.util.Locale.US); String s = nf.format(price); What is printed?
A monitoring job submits Callable tasks to a fixed thread pool: var service = java.util.concurrent.Executors.newFixedThreadPool(2); var future = service.submit(() -> { Thread.sleep(100); return 42; }); service.shutdown(); System.out.println(future.get()); What happens?
A reporting service formats generated SQL with a Java 17 text block: String sql = """ SELECT id, name FROM customers WHERE active = true """; String compact = sql.stripIndent().stripTrailing(); System.out.print(compact.lines().count() + ":" + compact.endsWith("\n")); What is printed?
A finance class uses constructors: class Money { Money() { this(0); } Money(int amount) { System.out.print(amount + " "); } } new Money(); What is printed?
An exam-prep code reads: class A { void m() throws java.io.IOException {} } class B extends A { void m() throws Exception {} } Which statement is correct?
Plan de Estudio
Cada dominio está ponderado para coincidir con el examen de certificación real, por lo que una simulación de práctica completa predice tu resultado.