20230829_과제

[서승원]

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private static Account[] accountArray = new Account[100]; private static Scanner scanner = new Scanner(System.in);     /*          1. 성명/나이/지역 을 입력받아 저장/출력           2. 가입 조건          - 나이 : 15세 이상 , 70미만           - 성별 : 남자(1,3) , 여자(2,4) 저장한다.          - 주소가 0으로 입력되면 '외국인'으로 저장          */                  int nMoney = 0 , nbalance =0;         int nSelectType = 0;         boolean bRunCheck = true;         String ano =""; // 계좌번호         String owner =""; // 계좌주         int balance = 0; //                   while(bRunCheck)         {             System.out.println("[ 계좌 생성 실행결과 ]");             System.out.println("============================================");             System.out.println("1. 계좌생성 | 2.계좌목록 | 3.예금 | 4.출금 | 5.해지 | 6.종료");             System.out.println("--------------------------------------------");             System.out.print("선택>");             nSelectType = scanner.nextInt();                          if(nSelectType == 1) {                 createAccount();             }             else if (nSelectType == 2) {                 // Account List                  accountList();             }             else if (nSelectType == 3) {                 deposit();             }             else if (nSelectType == 4) {                 withdraw();             }             else if (nSelectType == 5) {                 //삭제                  delectAccount();             }             else if (nSelectType == 6)             break;         } Colored by Color Scripter

cs

함수

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private void delectAccount() {         //계좌 삭제         System.out.println("----------");         System.out.println("계좌 해지");         System.out.println("----------");         String strCheck ;              //2. 계좌번호          while(true) {              System.out.println("1. 해지하실 계좌번호를 입력하세요");             System.out.println("(000-000의 형태로 입력하세요)");             System.out.println("계좌해지를 종료하실려면 0를 입력하세요");                          strCheck= scanner.next();             if(strCheck.equals("0"))                 return ; // 계좌 해지를 포기한다.               int nCheck = findAccount(strCheck);                          //accountArray[nCheck]             if( nCheck == -1)                 System.out.println("계좌정보를 다시 확인하세요.");             else {                                  if(nCheck == accountArray.length -1){                     accountArray[nCheck] = null;                     return ; // 배열의 마지막을 삭제시, null로 해지                 }                 for(int i = nCheck; i < accountArray.length; i ++) {                     if(accountArray[i] !=null) { //배열의 마지막은 for문 전에 return으로 나간다.                         accountArray[i] = accountArray[i+1];                     }                     else                          return ; // 계좌 해지 완료                 }                 return ;                  // 혹시 다른 오류로 return이 안되는 케이스가 발생을 대비해서                 //for문으로 검사가 완료되고 나면 return 한다/             }                 }                       }     private void createAccount() {         //계좌 생성          System.out.println("---------");         System.out.println("계좌 생성");         System.out.println("---------");                  String strAno = "";         String strOwner = "";         int nBalance = 0;                  System.out.println("계좌번호 : ");         strAno = scanner.next();         System.out.println("계좌주 : ");         strOwner = scanner.next();         System.out.println("초기금액 : ");         nBalance = scanner.nextInt();                  int nCheck = findAccount(strAno);                           if(nCheck == -1) { //중복되면, 생서             for(int i=0; i < accountArray.length; i++) {                 if(accountArray[i] == null) {                     accountArray[i] = new Account(strAno ,strOwner, nBalance );                                          if(accountArray[i+1] == null) {                     }                                          break;                 }             }         }         else             System.out.println("동일 계좌가 존재한다.");     }              private void accountList() {         //계좌 목록보기          System.out.println("---------");         System.out.println("계좌 리스트");         System.out.println("---------");                  System.out.print( "계좌번호\t");         System.out.print( "계좌주\t");         System.out.print( "예금\n");         for(int i=0; i < accountArray.length; i++) {                          Account account = accountArray[i];             //account에 set으로 변경시 ,accountArray[i]도 변경된다.               if(account != null) {                             System.out.print( accountArray[i].getStrAno() + "\t");                 System.out.print( accountArray[i].getStrOwner() + "\t");                 System.out.print( accountArray[i].getnBalance() + "\n");             }             else                 break;         }     }          private void withdraw() {         //출금 하기          String strAno ="";         int nBalance =0;         System.out.println("---------");         System.out.println("출금");         System.out.println("---------");                  System.out.println("계좌번호 : ");         strAno = scanner.next();         System.out.println("출금 : ");         nBalance = scanner.nextInt();                  int nCheck = findAccount(strAno);                    if(nCheck == -1) {             System.out.println("결과 : 찾는 계좌정보가 없습니다.");             return ;          }                  if(nBalance < accountArray[nCheck].getnBalance()) {             accountArray[nCheck].setnBalance(accountArray[nCheck].getnBalance() - nBalance);             System.out.println("결과 : 출금이 성공되었습니다.");         }         else             System.out.println("결과 : 잔고가 부족합니다.");       }       private void deposit() {         String strAno ="";         int nBalance =0;         System.out.println("---------");         System.out.println("예금");         System.out.println("---------");                  System.out.println("계좌번호 : ");         strAno = scanner.next();         System.out.println("예금 : ");         nBalance = scanner.nextInt();                  int nCheck = findAccount(strAno);                  if(nCheck == -1) {             System.out.println("결과 : 찾는 계좌정보가 없습니다.");             return ;          }                  accountArray[nCheck].setnBalance(accountArray[nCheck].getnBalance() + nBalance);         System.out.println("결과 : 입금이 성공되었습니다.");       }              //계좌 정보 찾기 : 못찾으면 -1      private int findAccount(String strAno) {         int nRtn = -1;                  for(int i=0; i < accountArray.length; i++) {                         if(accountArray[i] != null) {                 if(accountArray[i].getStrAno().equals(strAno) ) {                                 nRtn = i;                     break;                 }             }         }           return nRtn;     }      Colored by Color Scripter

cs

클래스

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public class Account {       private int nBalance ;      private String strAno;     private String strOwner;          boolean bGender;          public Account(String strAno, String strName, int nBalance) {         this.strAno = strAno;         this.strOwner = strName;         this.nBalance = nBalance;     }       public int getnBalance() {         return nBalance;     }       public void setnBalance(int nBalance) {         this.nBalance = nBalance;     }       public String getStrAno() {         return strAno;     }       public void setStrAno(String strAno) {         this.strAno = strAno;     }       public String getStrOwner() {         return strOwner;     }       public void setStrOwner(String strOwner) {         this.strOwner = strOwner;     }       public boolean isbGender() {         return bGender;     }       public void setbGender(boolean bGender) {         this.bGender = bGender;     }     }   Colored by Color Scripter

cs

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// 상품 가격 : vat를 포함한다. ( vat는 정가의 1.1% 추가 )           Login login = new Login();         Service0829 service = new Service0829();                  String id, pwd ;        System.out.println("아이디를 입력하세요");       id = scanner.next();       System.out.println("비밀번호를 입력하세요");       pwd = scanner.next();        //      if(login.getId().equals(id) && login.getPwd().equals(pwd) )  //          System.out.println(id+"님 로그인 성공.1"); //      else //          System.out.println("로그인 실패.1");                     if(!login.getId().equals(id) || !login.getPwd().equals(pwd) )            System.out.println("로그인 실패.2");       else {           System.out.println(id+"님 로그인 성공.2");           //등록된 상품의 정보를 보여주고            //구매 가능하게 한다.                        while(true) {                              service.getProduct();                              System.out.println("\n 구매하실 상품번호를 입력하세요");               int nChoice = scanner.nextInt();               service.setProductPrice(nChoice);                              System.out.println("계속 구매하시겠습니까?(Y/N)");             String strRunCheck = scanner.next().toUpperCase();             if(strRunCheck.equals("N") )                 break;           }                      //구매한 상품 리스트 출력           service.getSelectProduct();   Colored by Color Scripter

cs

클래스

1.

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public class Login {     private String id = "admin";     private String pwd = "1234";          public String getId() {         return id;     }     public void setId(String id) {         this.id = id;     }     public String getPwd() {         return pwd;     }     public void setPwd(String pwd) {         this.pwd = pwd;     }   }   Colored by Color Scripter

cs

2.

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public class Service0829 {     private String[][] product = {             {"1" , "냉장고" , "1250000" },             {"2" , "에어컨" , "1600000" },             {"3" , "세탁기" , "850000" },             {"4" , "TV" , "650000" },             {"5" , "청소기" , "1000000" }     };          private String[][] selectProduct = new String[100][4];     private int nCnt = 0;       public void getProduct() {         //          System.out.println(" ** 상 품 리 스 트 ** ");         System.out.println(" =============================== ");         System.out.println(" 번호\t상품명\t상품가격 ");         for(int i =0; i<product.length; i++) {             for(int j =0; j<product[i].length-1; j++) {                 System.out.print(" "+product[i][j]+"\t");             }                          System.out.println(String.format("%,10d", Integer.parseInt(product[i][product[i].length-1] ) ));         }         System.out.println(" =============================== ");                }       //구매한 상품을 배열에 저장     public void setProductPrice(int nNum) {         //          int nSelectNum = nNum - 1;          int nPay;         nPay = Integer.parseInt(product[nSelectNum][product[nSelectNum].length-1] );         nPay *=1.1;                  System.out.println(nPay);         for(int j =0; j<product[nSelectNum].length; j++) {             selectProduct[nCnt][j] = product[nSelectNum][j];         }         System.out.println(nCnt);             System.out.println(String.format("%10d", nPay ));         selectProduct[nCnt][product[nSelectNum].length] = String.valueOf(nPay);                  nCnt++;       }       //구매한 상품 리스트 출력      public void getSelectProduct() {         //          int ntot =0;         System.out.println(" ** 상 품 리 스 트 ** ");         System.out.println(" =============================== ");         System.out.println(" 번호\t상품명\t상품가격\t\t실제상품금액");         for(int i =0; i<nCnt; i++) {                 for(int j =0; j<selectProduct[i].length-2; j++) {                     System.out.print(" "+selectProduct[i][j]+"\t");                 }                              System.out.print(String.format("%,10d\t", Integer.parseInt(selectProduct[i][selectProduct[i].length-2] ) ));                 //System.out.println(selectProduct[i][3]);                 System.out.println(String.format("%,10d", Integer.parseInt(selectProduct[i][selectProduct[i].length-1] ) ));                 ntot +=Integer.parseInt(selectProduct[i][selectProduct[i].length-1]);             }           System.out.println(String.format("\t\t 총 구매 액 : \t%,10d" , ntot));         System.out.println(" =============================== ");     }                      }   Colored by Color Scripter

cs

[행복]

계좌삭제처리를 뒤의 자료를 앞으로 이동처리 하셨군요.
전체적인 프로그램 분석후 편리한 방법들로 처리하면 좋죠. 수고하셨습니다.