package luas_kel_bufferreader;
import java.io.BufferedReader;
import java.io.InputStreamReader;12
import java.io.IOException;
/**
*
* @author RPL 3
*/
public class Luas_kel_bufferreader {
/**
* @param args the command line arguments
*/
public static void main(String args[]){
try{
float nilair;
float kel;
float luas;
float pi = 3.14f;
System.out.println("Menghitung Luas Dan Keliling Lingkaran");
System.out.print("Masukan Jari Jari R:");
BufferedReader r = new BufferedReader(new InputStreamReader(System.in));
nilair = Float.parseFloat(r.readLine());
kel = 2 * pi * nilair;
luas = pi * (nilair * nilair);
System.out.println("Luas Lingkaran : " + luas);
System.out.println("Keliling Lingkaran : " + kel);
}
catch (IOException ie){
System.out.println(ie.getMessage());
}
}
}
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