Which of the following statements are incorrect?
A. static methods can call other static methods only
B. static methods must only access static data
C. static methods can not refer to this or super in any way
D. when object of class is declared, each object contains its own copy of static variables
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
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