What is true of final class?
A. Final class cause compilation failure
B. Final class cannot be instantiated
C. Final class cause runtime failure
D. Final class cannot be inherited
Answer: Option D
This Question Belongs to Java Program >> Miscellaneous In Java
A. Factory Method
B. Singleton
C. Builder
D. Prototype
In Java, which keyword is used to explicitly call the superclass constructor?
A. parent()
B. extends
C. this()
D. super()
What is the output of the following code snippet in Java? `System.out.println("5 + 2 = " + 5 + 2);`
A. 5 + 2 = 7
B. 7
C. 5 + 2 = 52
D. Compilation Error
What is the purpose of the `hashCode()` method in Java's Object class?
A. To execute SQL queries
B. To return a unique identifier for an object
C. To create JavaBeans
D. None of These
Join The Discussion