Question

Which of the following statements are true?

(choose more than one)

A. Override the toString method defined in the Object class whenever possible.
B. Override the equals method defined in the Object class whenever possible.
C. A public default no-arg constructor is assumed if no constructors are defined explicitly.
D. You should follow standard Java programming style and naming conventions. Choose informative names for classes, data fields, and methods.

Answer 1

The correct statements are A, B, and D. It is recommended to override the toString and equals methods defined in the Object class whenever possible. Follow the standard Java programming style and naming conventions.

Step-by-step explanation:

The correct statements are A, B, and D.

A. It is recommended to override the toString method defined in the Object class whenever possible. This allows you to provide a customized string representation of an object when it is converted to a string.

B. It is also recommended to override the equals method defined in the Object class whenever possible. This allows you to define the criteria for comparing two objects of your class.

C. The statement about a public default no-arg constructor is incorrect, as a constructor should be defined explicitly if no constructors are provided. However, if no constructors are defined, a public default no-arg constructor is automatically assumed and added by the Java compiler.

D. Follow the standard Java programming style and naming conventions to write readable and maintainable code. Choose informative names for classes, data fields, and methods to improve code clarity.