Mega Code Archive
0142 Constructors with Parameters
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The constructors can also have parameters. Usually the parameters are used to set the initial states of the object.
class Rectangle {
double width;
double height;
Rectangle(double w, double h) {
width = w;
height = h;
}
double area() {
return width * height;
}
}
public class Main {
public static void main(String args[]) {
Rectangle mybox1 = new Rectangle(10, 20);
double area;
area = mybox1.area();
System.out.println("Area is " + area);
}
}
The output from this program is shown here:
Area is 200.0
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