Java: Chapter 11 Quiz Latest Update Graded A+

Java: Chapter 11 Quiz Latest Update
Graded A+
A final class in Java can be extended by another class.


✔✔False




A static method can access instance variables of a class.


✔✔False




The equals() method must always be overridden when overriding hashCode().


✔✔True




Java supports multiple inheritance through classes.


✔✔False




An interface in Java can have both abstract methods and default methods.


✔✔True




1

,A constructor in Java can have a return type.


✔✔False




The super keyword is used to refer to the parent class constructor or methods.


✔✔True




A Java method can have multiple return statements.


✔✔True




The finally block in exception handling is always executed.


✔✔True




A try block can exist without a catch block if a finally block is present.


✔✔True




All methods in an abstract class must be abstract.


✔✔False




2

,An interface can extend multiple interfaces in Java.


✔✔True




A Java enum can have constructors and methods.


✔✔True




The this keyword can be used to call a static method.


✔✔False




A private method in a class can be accessed by its subclasses.


✔✔False




The continue statement immediately terminates the loop.


✔✔False




A switch statement in Java can use String values as case labels.


✔✔True




3

, A volatile variable ensures that its value is read from main memory, not from a thread’s cache.


✔✔True




A synchronized method allows multiple threads to execute it simultaneously.


✔✔False




The transient keyword prevents a variable from being serialized.


✔✔True




An instance of an abstract class can be created directly.


✔✔False




A Java program will always terminate if an exception occurs.


✔✔False




The do-while loop executes at least once, even if the condition is false.


✔✔True




4