Java Program To Find Area of a Circle
AIM:
Write a simple JAVA program to find area of circle.
ALGORITHM :
Step 1: Start
Step 2: Input the radius.
Step 3: Create the object and pass the radius to it.
Step 4: Call the area method from main and print the result.
Step 5: Stop.
PROGRAM :
import java.io.*;
class Circle{
double r;
Circle(){
r=0;
}
Circle(double a){
r=a;
}
void Area(){
double a;
a=3.14*r*r;
System.out.println("Area of cicle is "+ a);
}
}}
classAreaCircle{
public static void main(String args[])throws IOException{
BufferedReaderbr=new BufferedReader(new InputStreamReader(System.in));
System.out.println("Enter the radius:");
int r=Integer.parseInt(br.readLine());
System.out.println(r);
Circle c1=new Circle(r);
c1.Area();
}
}
OUTPUT :
Enter the radius:
3
Area of cicle is 28.259999999999998
