Java Advanced Level Interview Questions Quiz (Multiple Choice)

Which keyword in Java is used to prevent method overriding

Which type of class cannot be instantiated directly in Java

Which collection class allows key value pairs and does not allow duplicate keys

Which mechanism is used by Java to achieve runtime polymorphism

Which of these classes are part of the Java Collections Framework

Which reference type is used in Java for objects that should be collected when memory is low

Which of the following is true about the Java memory model

Which Java feature provides the ability to load classes at runtime

Which type of thread pool creates new threads as needed but reuses previously constructed threads when available

Which keyword is used to create a block of code that can be executed by only one thread at a time

Which type of class in Java is used to define a group of constants

Which garbage collector is designed for low latency in Java

Which method is called when an object is used in a try with resources block

Which annotation is used to indicate that a method overrides a superclass method

Which functional interface represents a function that accepts one argument and returns a result

Which Stream operation in Java is terminal

Which class in Java is immutable

Which type of exception must be either caught or declared in the method signature

Which Java 8 feature allows multiple methods with same name in interfaces with default implementations

Which feature of Java ensures that code is executed in a secure environment?