Program Java Menghitung Lingkaran

Source Code:
public class Lingkaran { private double r; public Lingkaran(double r) { this.r = r; } public Lingkaran() { r = 3.0; } public double keliling(double keliling) { return 2*3.14*r; } public double luas(double luas) { return 3.14*r*r; } public static void main(String[]args) { Lingkaran s = new Lingkaran (); s.luas(3.14*3*3); s.keliling(2*3.14*3); System.out.print("--****************--\n"); System.out.print("Nama : Sholahuddin Al-Ayubi\n"); System.out.print("NIM : 13111019\n"); System.out.print("Prodi : Teknik Informatika\n"); System.out.print("--****************--\n"); System.out.println("Keliling : "+s.keliling(0)); System.out.println("Luas : "+s.luas(0)); } }

Screenshoot Output:

Download: Program Java Menghitung Lingkaran.java