Which of these statement is incorrect?
A. Two or more methods with same name can be differentiated on the basis of their parameters data type
B. Two or more method having same name can be differentiated on basis of number of parameters
C. Any already defined method in java library can be defined again in the program with different data type of parameters
D. If a method is returning a value the calling statement must have a variable to store that value
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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