Banco Do Brasil Agente De Tecnologia Practice Questions - Banco Do Brasil Escriturário - Agente De Tecnologia (TI) Exam

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In Java 17, a software engineer at Banco do Brasil is designing a payment processing module where a base class 'PaymentProcessor' defines a method 'public void process(Transaction tx)'. A subclass 'PixProcessor' overrides this method. At runtime, when an instance of 'PixProcessor' is referenced via a variable of type 'PaymentProcessor' and 'process(tx)' is invoked, which mechanism determines that the 'PixProcessor' implementation must execute?

Dynamic method dispatch (late binding) resolved at runtime via the virtual method table (vtable) Static method binding resolved at compile time based on the reference type 'PaymentProcessor' Bytecode weaving performed by the Java Native Interface (JNI) during class loading Type erasure performed by the Java compiler during bytecode generation

Correct Answer:

Dynamic method dispatch (late binding) resolved at runtime via the virtual method table (vtable)

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