JavaCodes/Marvellous1.java at main · raskarabhi45/JavaCodes · GitHub

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//Interface

import java.lang.*;

interface Circle

{

float PI=3.14f; //public static final PI=3.14f

float CalculateArea(float Radius); //public abstract float

float CalculateCircumference(float Radius); //public abstract float

}

class Area implements Circle

{

public float CalculateArea(float Radius)

{

return (PI*Radius*Radius);

}

public float CalculateCircumference(float Radius)

{

return (2*PI*Radius);

}

class Marvellous1

{

public static void main(String arg[])

{

System.out.println("Value of PI is :"+Circle.PI);

Area obj=new Area();

float fRet=0.0f;

fRet=obj.CalculateArea(10.5f);

System.out.println("Area is :"+fRet);

fRet=obj.CalculateCircumference(10.5f);

System.out.println("Circumference is :"+fRet);

}

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