JAVA NetBeans Program Menghitung Luas dan Keliling Segitiga

SOURCE CODE LUAS DAN KELILING SEGITIGA JAVA NETBEANS


package luas.dan.keliling.lingkaran;
import java.util.Scanner;
public class LuasDanKelilingLingkaran {
    public static void main(String[] args) {
     
         Scanner input=new Scanner(System.in);

{
final double phi=3.14;
double alas;
double tinggi;
double jari2;
double luas;
double keliling;
Scanner in = new Scanner(System.in);
System.out.println("========================================");
System.out.println("Menu Menghitung Luas Dan Keliling ");
System.out.println("========================================");
System.out.println("1.Lingkaran");
System.out.println("2.Segitiga");
System.out.println("");
System.out.print("Masukan Pilihan Anda :");
int bangun=in.nextInt();
switch(bangun)
{
case 1 :
    System.out.println("");
    System.out.println("Menghitung Luas Dan Keliling Lingkaran ...");
    System.out.print("Masukan jari-jari :");
    jari2=in.nextDouble();
    luas=phi*jari2*jari2;
    System.out.println("Luas = " + luas);
    keliling=2*phi*jari2;
    System.out.println("Keliling = " + keliling);
     System.out.println("=========TERIMA KASIH=========");
    break;
case 2 :
    System.out.println("");
    System.out.println("Menghitung Luas Dan Keliling Segitiga ...");
    System.out.print("Masukan Alas :");
    alas=in.nextDouble();
    System.out.print("Masukan Tinggi :");
    tinggi=in.nextDouble();
    luas=0.5*alas*tinggi;
    System.out.println("Luas = " + luas);
    keliling=alas+alas+alas;
    System.out.println("Keliling = "+keliling);
    System.out.println("==========TERIMA KASIH===========");
    break;
}
}
}
      
     
     
    }


OUTPUT

    Terima kasih Semoga Membantu....