Question

Which of the following is an example of using 'this' to send a self-reference to another object?

a) (this)
b) this.setX(xVal)
c) this.setY(yVal)
d) None of the above

Answer 1

The correct answer is b) this.setX(xVal). The 'this' keyword is used in object-oriented programming languages, such as Java, to refer to the current instance of a class.

Step-by-step explanation:

The correct answer is b) this.setX(xVal).

The 'this' keyword is used in object-oriented programming languages, such as Java, to refer to the current instance of a class. The example given, this.setX(xVal), demonstrates the use of 'this' to call a method on the current object and pass a value as an argument.

By using 'this' in this context, we are telling the program to invoke the setX method on the current object and pass xVal as its argument.