Java Class Dependency Graph Quiz

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Questions and Answers

What is the purpose of the 'setX' method in the 'A' class?

The purpose of the 'setX' method in the 'A' class is to set the value of the variable 'x'.

In the given Java code, what does the expression 'int i = a1.f(10);' evaluate to?

The expression 'int i = a1.f(10);' evaluates to 20.

In the 'Main' class, what does the statement 'A a2 = a1;' signify?

The statement 'A a2 = a1;' signifies that the reference variable 'a2' now refers to the same object as 'a1'.

Explain the purpose of the 'A' class in the given Java code snippet.

The 'A' class serves as a blueprint for creating objects that have two integer variables 'x' and 'y', along with methods to set the value of 'x' and calculate the product of 'y' with a given integer. Signup and view all the answers

What is the significance of the statement 'A a2 = a1;' in the 'Main' class?

The statement 'A a2 = a1;' signifies that the reference variable 'a2' is being assigned the same memory address as 'a1', indicating that both variables point to the same object. Signup and view all the answers

Explain the concept of dependency relations in object-oriented programs, as presented by the authors.

The authors present dependency relations as the interaction and reliance between different elements (classes, methods, variables) within an object-oriented program, where changes in one element may impact others, indicating a level of dependency among them. Signup and view all the answers