Tugas Live Coding 1 (2/10/2019)

Soal Pertama
package tugas.pemdas;
import java.util.Scanner;
import java.lang.Math;
public class TugasPemDas {
    public static void main(String[] args) {
        Scanner masuk = new Scanner(System.in);
        System.out.print("Menu :\n"
        + "1. menghitung luas dan keliling persegi panjang\n"
        + "2. menghitung luas dan keliling lingkaran\n"
        + "3. menghitung luas dan keliling segitiga\n");
        int pa = 1;
        while ((pa==1)||(pa==2)||(pa==3))
        {   System.out.print("Pilihan anda : ");
            pa= masuk.nextInt();
            switch (pa)
            {
                case 1:
                    System.out.print("Masukkan panjang\t: ");
                    double p = masuk.nextLong();
                    System.out.print("Masukkan lebar\t\t: ");
                    double l = masuk.nextLong();
                    System.out.print("\nKeliling persegi panjang\t: ");
                    double kp = (p+l)*2;
                    System.out.printf("%.0f",kp);
                    System.out.print(" cm");
                    System.out.print("\nLuas persegi panjang\t\t: ");
                    kp = p*l;
                    System.out.printf( "%.0f",kp);
                    System.out.println(" cm2\n");
                    break;
                case 2:
                    System.out.print("Masukkan jari - jari\t: ");
                    double j = masuk.nextLong();
                    System.out.print("\nKeliling persegi panjang\t: ");
                    double kl = 2*Math.PI*j;
                    System.out.printf("%.0f",kl);
                    System.out.print(" cm");
                    System.out.print("\nLuas persegi panjang\t\t: ");
                    kl = Math.PI*j*j;
                    System.out.printf( "%.0f",kl);
                    System.out.println(" cm2\n");
                    break;
                case 3:
                    System.out.print("Masukkan a : ");
                    double a = masuk.nextLong();
                    System.out.print("Masukkan b : ");
                    double b = masuk.nextLong();
                    System.out.print("Masukkan r : ");
                    double r = masuk.nextLong();
                    System.out.print("\nKeliling segitiga\t\t: ");
                    double ks = a+b+r;
                    System.out.printf("%.0f",ks);
                    System.out.print(" cm");
                    System.out.print("\nLuas segitiga\t\t\t: ");
                    ks /= 2;
                    ks = Math.sqrt(ks*(ks-a)*(ks-b)*(ks-r));
                    System.out.printf( "%.0f",ks);
                    System.out.println(" cm2\n");
                    break;
                default :
                    System.out.print("Data tak ditemukan, program dihentikan ...");
                    break;
            }
        }
    }
}
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Soal Kedua
package imt;
import java.math.BigDecimal;
import java.math.RoundingMode;
import java.util.Scanner;
import java.text.DecimalFormat;
import java.text.DecimalFormatSymbols;
import static jdk.nashorn.tools.ShellFunctions.input;
public class IMT {
    public static void main(String[] args) {
        Scanner masuk = new Scanner(System.in);
        DecimalFormat titik = new DecimalFormat("#,##");
        System.out.print("Berat badan (kg)\t: ");
        double bb = masuk.nextDouble();
        System.out.print("Tinggi badan (m)\t: ");
        double tb = masuk.nextDouble();
        System.out.print("IMT\t= ");
        double imt = bb/(tb*tb);
        BigDecimal angka = new BigDecimal(imt).setScale(2, RoundingMode.HALF_UP);
        double ubah = angka.doubleValue();
        String IMT = String.valueOf(ubah);
        IMT  = IMT.replace('.', ',');
        System.out.print(IMT+"\t\tTermasuk");
        if (ubah<=18.5){
            System.out.println(" Kurus");
        }
        else if ((ubah>18.5)&&(ubah<=25)){
            System.out.println(" Normal");
        }
        else if ((ubah>25)&&(ubah<=30)){
            System.out.println(" Gemuk");
        }
        else if (ubah>30){
            System.out.println(" Kegemukan");
        }
    }
}
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Soal Ketiga
package imt;
import java.util.Scanner;
public class UpahKerja {
    public static void main(String[] args) {
        System.out.printf("%-12s%s", "Jam kerja",": ");
        Scanner masuk = new Scanner(System.in);
        double jk = masuk.nextDouble();
        int l=0,u=0,d=0;
        double le,up,de;
        System.out.printf("%-6s%s","Upah","= Rp.");
        if (jk>60){
            u = 300000;
            System.out.printf("%7s\n",u);
        }
        else if (jk<=60){
            up =jk*5000.0; u=(int) up;
            System.out.printf("%7s\n",u);
        }
        System.out.printf("%-6s%s","Lembur","= Rp.");
        if (jk>60){
            le =((jk-60.0)*6000); l=(int) le;
            System.out.printf("%7s\n",l);
        }
        else {
            System.out.printf("%7s\n",0);
        }
        System.out.printf("%-6s%s","Denda","= Rp.");
        if (jk>50){
            System.out.printf("%7s\n",0);
        }
        else {
            de =(50.0-jk)*1000; d=(int) de;
            System.out.printf("%7s\n",d);
        }
        System.out.println("----------------------");
        System.out.printf("%-6s%s","Total","= Rp.");
        System.out.printf("%7s\n",(l+u-d));
    }}