Which design pattern is used to create objects without exposing the instantiation logic to the client?
A. Factory Method
B. Singleton
C. Builder
D. Prototype
Answer: Option A
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A. Factory Method
B. Singleton
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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
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B. To return a unique identifier for an object
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