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Expressions and Output() Practice Test
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Q1
public class Rectangle {
private double length;
private double width;
public Rectangle(double l, double w) {
length = l;
width = w;
}
public double getArea() {
return length * width;
}
public double getPerimeter() {
return 2 * (length + width);
}
public void scale(double factor) {
length *= factor;
width *= factor;
}
}
Consider the following code segment that uses the Rectangle class shown above:
Rectangle rect = new Rectangle(4.0, 6.0);
double original = rect.getArea();
rect.scale(1.5);
double scaled = rect.getArea();
System.out.println(scaled / original);
What is printed as a result of executing this code segment?
Consider the following code segment that uses the Rectangle class shown above:
Rectangle rect = new Rectangle(4.0, 6.0);
double original = rect.getArea();
rect.scale(1.5);
double scaled = rect.getArea();
System.out.println(scaled / original);
What is printed as a result of executing this code segment?