Mengurangi Pengulangan Code Memakai Method Java
Example
Before Code
if(brtBrg > maxBrt) { Double hitBrg; hitBrg = brtBrg - 15; totaLebih = (jmlOrg * ekTicket) + (biayaTmbh * hitBrg); infoYogi = "\n Jurusan : " +jurS + "\n Kelas : " +klsEk + "\n Berat Barang Bawaan : " +brtBrg + "\n Berat Barang MAX : " +maxBrt +" Kg" + "\n Denda Barang Rp." +biayaTmbh + "\n Jumlah Orang : " +jmlOrg + "\n Total Biaya Rp." +totaLebih; JOptionPane.showMessageDialog(null, infoYogi,"Program Penjualan Ticket", JOptionPane.INFORMATION_MESSAGE); } else { total = (jmlOrg * ekTicket) + (biayaTmbh * brtBrg); infoYogi = "\n Jurusan : " +jurB + "\n Kelas : " +klsEk + "\n Berat Barang Bawaan : " +brtBrg + "\n Berat Barang MAX : " +maxBrt +" Kg" + "\n Denda Barang Rp." +biayaTmbh + "\n Jumlah Orang : " +jmlOrg + "\n Total Biaya Rp." +total; JOptionPane.showMessageDialog(null, infoYogi,"Program Penjualan Ticket", JOptionPane.INFORMATION_MESSAGE); }
After Using Method
if(yogi.brtBrg > yogi.maxBrt) { Double hitBrg; hitBrg = yogi.brtBrg - 15; yogi.totaLebih = (yogi.jmlOrg * yogi.ekTicket) + (yogi.biayaTmbh * hitBrg); yogi.infoReport(); //memanggil method report yogi.infoYogi = "\n Total Biaya Rp." +yogi.totaLebih; JOptionPane.showMessageDialog(null, yogi.infoYogi,"Program Penjualan Ticket", JOptionPane.INFORMATION_MESSAGE); } else { yogi.total = (yogi.jmlOrg * yogi.ekTicket) + (yogi.biayaTmbh * yogi.brtBrg); yogi.infoReport(); yogi.infoYogi = "\n Total Biaya Rp." +yogi.total; JOptionPane.showMessageDialog(null, yogi.infoYogi,"Program Penjualan Ticket", JOptionPane.INFORMATION_MESSAGE); } Sebelumnya buatlah variable nya menjadi public
Example
Before
public static void main(String[] args) { // hidangan for jenis tiket dan kelas tiket String jnsTicketnKls = ""; String infoYogi = ""; String brtBr; String jmlOrgY; //...... } After
public class BusTicket { public String infoYogi = ""; public String brtBr; public String jmlOrgY; public static void main(String[] args) { // hidangan for jenis tiket dan kelas tiket // String jnsTicketnKls = ""; // String infoYogi = ""; // String brtBr; // String jmlOrgY; Buat Methodnya
public class BusTicket { public String infoYogi = ""; public String brtBr; public String jmlOrgY; public static void main(String[] args) { //code here } public void infoReport() { infoYogi = "\n Jurusan : " +jurB + "\n Kelas : " +klsEk + "\n Berat Barang Bawaan : " +brtBrg + "\n Berat Barang MAX : " +maxBrt +" Kg" + "\n Denda Barang Rp." +biayaTmbh + "\n Jumlah Orang : " +jmlOrg; JOptionPane.showMessageDialog(null, infoYogi,"Program Penjualan Ticket", JOptionPane.INFORMATION_MESSAGE); } Untuk pemanggilan atau menggunaan variable public di dalam main , harus memakai object , like as yogi.namavariable ( nama_method.nama_variable) else other method
//buat object untuk class nya BusTicket yogi; //BusTicket yaitu class name yogi = new BusTicket(); // this for method Berikut Source Code