Advanced Java Programming - Old Questions
Question Answer Details
4. Write an object oriented program in Java to find the area of circle.
Answer
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Official Answer
class Circle{
double radius;
Circle(double r){
radius = r;
}
double area(){
return Math.PI*Math.pow(radius, 2);
}
}
public class CircleTest {
public static void main(String[] args){
Circle c = new Circle(5);
double area = c.area();
System.out.println("Area of circle c is: "+area);
}
}