Pemrograman Java Fungsi Nilai Balik dan Konversi Tipe Data

Output Pemrograman Java Fungsi Nilai Balik dan Konversi Tipe Data

Studi Kasus
Buat aplikasi dan gunakan fungsi untuk mengolah operasi aritmatika di bawah ini :

"700" x 800 =
899 x 89898 =
898 x "7878" =
"2323" x "1212" =

Subject : Tugas java 1 NIM stmik elrahma

Fungsi Utama

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package aritmatika;

/**
 * @blog: www.gatewan.com
 * @author Wawan Beneran
 */
public class Aritmatika {

    /**
     * @param args the command line arguments
     */
    public static void main(String[] args) {
        String nilai1 = "700";
        String nilai2 = "7878";
        String nilai3 = "2323";
        String nilai4 = "1212";
        double nilai5 = 800;
        double nilai6 = 899;
        double nilai7 = 89898;
        double nilai8 = 898;
        
        Perkalian hit = new Perkalian();
        
        System.out.print("\"700\" x 800 = ");
        System.out.println(hit.kali(Double.parseDouble(nilai1), nilai5));
        System.out.print("899 x 89898 = ");
        System.out.println(hit.kali(nilai6, nilai7));
        System.out.print("898 x \"7878\" = ");
        System.out.println(hit.kali(nilai8, Double.parseDouble(nilai2)));
        System.out.print("\"2323\" x \"1212\" = ");
        System.out.println(hit.kali(Double.parseDouble(nilai3), Double.parseDouble(nilai4)));
        
    }
    
}

Fungsi Perkalian

/*
 * To change this license header, choose License Headers in Project Properties.
 * To change this template file, choose Tools | Templates
 * and open the template in the editor.
 */
package aritmatika;

/**
 * @blog: www.gatewan.com
 * @author Wawan Beneran
 */
public class Perkalian {
    double kali(double a, double b) {
    
        return(a*b);
    }
}

Tabel Class Konversi

Class	Konversi ke Tipe Data	Pemakaian
Boolean	Boolean	Boolean.parseBoolean(…);
Byte	Byte	Byte.parseByte(…);
Character	Char	String.charAt();
Short	Short	Short.parseShort(…);
Integer	Int	Integer.parseInt(…);
Long	Long	Long.parseLong(…);
Float	Float	Float.parseFloat(…);
Double	Double	Double.parseDouble(…)

Demo

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