10-06 API활용, 성적표 출력 과제

[장지호]

(1) te = "(010)3423-2704" 을 010/3423/2704 형식으로 분리하시오.

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package exam;   public class Api_1 {     public static void main(String[] args) {         String te = "(010)3423-2704";         System.out.println(te.replace("(","").replaceAll("\\p{Punct}","/"));     } } Colored by Color Scripter

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(2) 업로드할 그림 파일명(확장자가 jpg/gif/png)을 입력하도록 체크하시오.(일반 메소드로 처리)

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package exam;   import java.util.Scanner;   public class Api_2 {     public static void main(String[] args) {         Scanner scanner = new Scanner(System.in);         System.out.print("업로드 파일 : ");         image_check(scanner.nextLine());         scanner.close();     }     private static boolean image_check(String filename) {         String tmpN = filename.substring(filename.length()-4);         if(tmpN.equalsIgnoreCase(".jpg") || tmpN.equalsIgnoreCase(".png") || tmpN.equalsIgnoreCase(".gif")) {             System.out.println("업로드 되었습니다.");             return true;         }         System.out.println("이미지 확장자가 아닙니다.");         return false;     } }   Colored by Color Scripter

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(3) 업로드할 그림 파일명(확장자가 jpg/gif/png)을 입력하도록 체크하시오.(정규식 처리)

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package exam;   import java.util.Scanner; import java.util.regex.Pattern;   public class Api_3 {     public static void main(String[] args) {         Scanner scanner = new Scanner(System.in);         System.out.print("업로드 파일 : ");         String img = scanner.nextLine();         String regex = "[.]{1}[jpg,png,gif,JPG,PNG,GIF]{3}";         if(Pattern.matches(regex, img.substring(img.length()-4)))             System.out.println("업로드 되었습니다.");         else System.out.println("이미지 확장자가 아닙니다.");         scanner.close();     } }   Colored by Color Scripter

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(4) 전화번호 양식만 입력가능하도록 체크(정규식사용)? 예) 010-3423-2740

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package exam;   import java.util.Scanner; import java.util.regex.Pattern;   public class Api_4 {     public static void main(String[] args) {         Scanner scanner = new Scanner(System.in);         System.out.print("전화번호 : ");         String regex = "^[\\d]{2,3}-[\\d]{3,4}-[\\d]{4}$";         if(Pattern.matches(regex, scanner.nextLine()))             System.out.println("전화번호 양식이 일치합니다.");         else System.out.println("전화번호 양식이 일치하지 않습니다.");         scanner.close();     } } Colored by Color Scripter

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(5) 주민번호 형식에 맞도록 입력체크(정규식사용)? 예) 123456-1234567

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package exam;   import java.util.Scanner; import java.util.regex.Pattern;   public class Api_5 {     public static void main(String[] args) {         Scanner scanner = new Scanner(System.in);         System.out.print("주민등록번호 : ");         String regex = "^[\\d]{6}-[1,2,3,4]{1}[\\d]{6}$";         if(Pattern.matches(regex, scanner.nextLine()))             System.out.println("주민등록번호 형식이 일치합니다.");         else System.out.println("주민등록번호 형식이 일치하지 않습니다.");         scanner.close();     } }   Colored by Color Scripter

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(6) 아이디 형식에 맞도록 처리(영문자, _, $ 허용)(정규식 사용)? 예) atom1234, atom_1234, atom$1234

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package exam;   import java.util.Scanner; import java.util.regex.Pattern;   public class Api_6 {     public static void main(String[] args) {         Scanner scanner = new Scanner(System.in);         System.out.print("아이디 입력 : ");         if(Pattern.matches("^[a-zA-Z0-9_$]*$", scanner.nextLine()))             System.out.println("아이디 형식이 올바릅니다.");         else System.out.println("아이디 형식이 틀립니다.");     } } Colored by Color Scripter

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(7) 성적처리(ArrayList객체사용)

Run

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package exam;   import java.util.ArrayList; import java.util.List; import java.util.Scanner; import java.util.regex.Pattern; //학번 이름 국어 영어 수학 총점 평균 학점 public class GradeRun {     public static Scanner scanner = new Scanner(System.in);     public static void main(String[] args) {         ArrayList<GradeVo> vos = new ArrayList<>();         GradeVo vo = new GradeVo();         while(true) {             vo = new GradeVo();             vo.setNum(num());             vo.setName(name());             vo.setKor(kor());             vo.setEng(eng());             vo.setMat(mat());             vo.setTot(vo.getKor()+vo.getEng()+vo.getMat());             vo.setAvg((double)vo.getTot()/3.0);             if(vo.getAvg() >= 90) vo.setGrade('A');             else if(vo.getAvg() >= 80) vo.setGrade('B');             else if(vo.getAvg() >= 70) vo.setGrade('C');             else if(vo.getAvg() >= 60) vo.setGrade('D');             else vo.setGrade('F');             vos.add(vo);             System.out.print("더 입력하시겠습니까?\n(그만 두시려면 n키를 입력하세요): ");             if(scanner.nextLine().equalsIgnoreCase("n")) break;         }         System.out.println("=============성적표==============");         System.out.println("학번\t이름\t국어\t영어\t수학\t총점\t평균\t학점");         for(int i=0; i<vos.size(); i++) {             vo = vos.get(i);             System.out.print(vo.getNum()+"\t");             System.out.print(vo.getName()+"\t");             System.out.print(vo.getKor()+"\t");             System.out.print(vo.getEng()+"\t");             System.out.print(vo.getMat()+"\t");             System.out.print(vo.getTot()+"\t");             System.out.printf("%.2f\t",vo.getAvg());             System.out.print(vo.getGrade()+"\n");             System.out.println("--------------------------------------");         }         scanner.close();     }     private static int num() {         while(true) {             System.out.print("학번을 입력해주세요 : ");             String tmp = scanner.nextLine();             if(Pattern.matches("^[\\d]*$", tmp))                 return Integer.parseInt(tmp);             System.out.println("다시 입력해주세요.");         }     }     private static String name() {         while(true) {             System.out.print("이름을 입력해주세요 : ");             String tmp = scanner.nextLine();             if(Pattern.matches("^[가-힣]{2,4}$", tmp))                 return tmp;             System.out.println("다시 입력해주세요.");         }     }     private static int kor() {         while(true) {             System.out.print("국어점수를 입력해주세요 : ");             String tmp = scanner.nextLine();             if(Pattern.matches("^[\\d]{1,3}$", tmp))                 return Integer.parseInt(tmp);             System.out.println("다시 입력해주세요.");         }     }     private static int eng() {         while(true) {             System.out.print("영어점수를 입력해주세요 : ");             String tmp = scanner.nextLine();             if(Pattern.matches("^[\\d]{1,3}$", tmp))                 return Integer.parseInt(tmp);             System.out.println("다시 입력해주세요.");         }     }     private static int mat() {         while(true) {             System.out.print("수학점수를 입력해주세요 : ");             String tmp = scanner.nextLine();             if(Pattern.matches("^[\\d]{1,3}$", tmp))                 return Integer.parseInt(tmp);             System.out.println("다시 입력해주세요.");         }     } } Colored by Color Scripter

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VO

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package exam;   public class GradeVo {     private String name;     private int num,kor,eng,mat,tot;     private double avg;     private char grade;          @Override     public String toString() {         return "gradeVo [name=" + name + ", num=" + num + ", kor=" + kor + ", eng=" + eng + ", mat=" + mat + ", tot=" + tot                 + ", avg=" + avg + ", grade=" + grade + "]";     }     public String getName() {         return name;     }     public void setName(String name) {         this.name = name;     }     public int getNum() {         return num;     }     public void setNum(int num) {         this.num = num;     }     public int getKor() {         return kor;     }     public void setKor(int kor) {         this.kor = kor;     }     public int getEng() {         return eng;     }     public void setEng(int eng) {         this.eng = eng;     }     public int getMat() {         return mat;     }     public void setMat(int mat) {         this.mat = mat;     }     public int getTot() {         return tot;     }     public void setTot(int tot) {         this.tot = tot;     }     public double getAvg() {         return avg;     }     public void setAvg(double avg) {         this.avg = avg;     }     public char getGrade() {         return grade;     }     public void setGrade(char grade) {         this.grade = grade;     } } Colored by Color Scripter

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