[Java] 실습 PhoneBookVer01, PhoneBookVer02

package phonebook.var01;

//--------------------------------------------------------------------------
// class PhoneInfo
//--------------------------------------------------------------------------
class PhoneInfo{
	String name;
	String phoneNumber;
	String birth;
	
	public PhoneInfo(String name, String num, String birth) {
		this.name	 = name;
		phoneNumber	 = num;
		this.birth	 = birth;
	}
	
	public PhoneInfo(String name, String num) {
		this.name	 = name;
		phoneNumber	 = num;
		this.birth	 = null;
	}
	
	// 전화번호 정보를 보여주는 메서드
	public void showInfo() {
		System.out.println("==============================================");
		System.out.println("이   름 : " + name);
		System.out.println("전화번호 : " + phoneNumber);
		if(birth != null)
			System.out.println("생년월일 : " + birth);
	}
	
} // End - class PhoneInfo


//--------------------------------------------------------------------------
// public class PhoneBookVer01
//--------------------------------------------------------------------------
public class PhoneBookVer01 {

	public static void main(String[] args) {
		PhoneInfo pInfo1 = new PhoneInfo("힝구", "010-1111-2222", "90년 09월 09일");
		PhoneInfo pInfo2 = new PhoneInfo("밍구", "010-3333-7777");
		
		pInfo1.showInfo();
		pInfo2.showInfo();
		

	}

} // End - public class PhoneBookVer01

출력 결과

 

package phonebook.var02;

import java.util.Scanner;

//--------------------------------------------------------------------------
//class PhoneInfo
//--------------------------------------------------------------------------
class PhoneInfo{
	String name;
	String phoneNumber;
	String birth;
	
	public PhoneInfo(String name, String num, String birth) {
		this.name	 = name;
		phoneNumber	 = num;
		this.birth	 = birth;
	}
	
	public PhoneInfo(String name, String num) {
		this.name	 = name;
		phoneNumber	 = num;
		this.birth	 = null;
	}
	
	// 전화번호 정보를 보여주는 메서드
	public void showInfo() {
		System.out.println("==============================================");
		System.out.println("이   름 : " + name);
		System.out.println("전화번호 : " + phoneNumber);
		if(birth != null)
			System.out.println("생년월일 : " + birth);
	}
	
} // End - class PhoneInfo


//--------------------------------------------------------------------------
//public class PhoneBookVer02
//--------------------------------------------------------------------------
public class PhoneBookVer02 {
	static Scanner keyboard = new Scanner(System.in);
	
	public static void showMenu() {
		System.out.println("========================================");
		System.out.println("작업을 선택하십시오!");
		System.out.println("0. 프로그램 종료");
		System.out.println("1. 데이터입력");
		System.out.println("선택 : ");
	}
	
	public static void inputData() {
		System.out.println("========================================");
		System.out.println("이름 : ");
		String name = keyboard.nextLine();
		System.out.println("전화번호 : ");
		String phone = keyboard.nextLine();
		System.out.println("생년월일 : ");
		String birth = keyboard.nextLine();
		
		PhoneInfo info = new PhoneInfo(name, phone, birth);
		info.showInfo();
	}
	
	public static void main(String[] args) {

		int choice = 0; // 작업 선택한 값을 저장할 변수
		
		while(true) {
			// 메뉴를 보여준다.
			showMenu();
			// 메뉴에서 작업할 것을 선택한다.
			choice = keyboard.nextInt();
			keyboard.nextLine();
			
			switch(choice) {
			case 1 : inputData(); // 전화번호 등록
				break;
			case 0 : // 프로그램 종료
				return;
			}
		}

	}

} // End - public class PhoneBookVer02

출력 결과

 

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