Which of the following statements are incorrect?
A. Variables declared as final occupy memory
B. final variable must be initialized at the time of declaration
C. Arrays in java are implemented as an object
D. All arrays contain an attribute-length which contains the number of elements stored in the array
Answer: Option A
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

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