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import java.util.Scanner;
interface InterfaceArea {
void calculateArea();
public static void main(String[] args) {
RectangleArea1 rec = new RectangleArea1();
rec.calculateArea();
SqaureArea1 square = new SqaureArea1();
square.calculateArea();
CircleArea1 circle = new CircleArea1();
circle.calculateArea();
}
}
class RectangleArea1 implements InterfaceArea{
float len,b;
public void calculateArea() {
Scanner scanner = new Scanner(System.in);
System.out.println("Enter Length and Breadth: ");
len = scanner.nextFloat();
b = scanner.nextFloat();
System.out.println("Rectangle Area: " + len*b);
}
}
class SqaureArea1 implements InterfaceArea{
float len;
public void calculateArea() {
Scanner scanner = new Scanner(System.in);
System.out.println("Enter Length: ");
len = scanner.nextFloat();
System.out.println("Square Area: " + len*len);
}
}
class CircleArea1 implements InterfaceArea{
float radius;
public void calculateArea() {
Scanner scanner = new Scanner(System.in);
System.out.println("Enter Radius: ");
radius = scanner.nextFloat();
System.out.println("Circle Area: " + 3.14*radius*radius);
}
}
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