컴퓨터공방

https://www.youtube.com/watch?v=siUcCqySsng 기존코드를 클래스화 기존코드 public class AccountingApp { // 공급가액 public static double valueOfSupply = 10000.0; // 부가가치세율 public static double vatRate = 0.1; public static double getVAT() { return valueOfSupply * vatRate; } public static double getTotal() { return valueOfSupply + getVAT(); } public static void main(String[] args) { System.out.println("Value of supp..

https://www.youtube.com/watch?v=m1Cx8vDDmYo package projectOOP; class Print { public static String delimiter; //클래스 소속의 전역변수 public static void A( ) { System.out.println(delimiter); System.out.println("A"); System.out.println("A"); } public static void B( ) { System.out.println(delimiter); System.out.println("B"); System.out.println("B"); } } public class myOOP2_1 { public static void main(Strin..

https://www.youtube.com/watch?v=nMiS5ZRSgCw&t=574s Object-Oriented Programming, OOP package projectOOP; import java.io.FileWriter; import java.io.IOException; public class othersOOP { public static void main(String[] args) throws IOException { //throws IOException는 Filewriter의 예외처리 관련 코드 // class : System, math, Filewriter // instance : f1, f2 System.out.println(Math.PI); System.out.println(Math..

https://www.youtube.com/watch?v=l8hrA4VSIlA&t=274s 메소드와, 클래스는 코드의 뼈대와 같다. 구조를 만든다. class Accounting { public static double valueOfSupply; public static double vatRate; public static double expenseRate; //메소드 생성 public static void print() { System.out.println("Value of supply : " + valueOfSupply); System.out.println("VAT : " + getVAT() ); System.out.println("Total : " + getTotal() ); System.out.p..