[Windows10][jdk15] 객체 지향 프로그래밍(OOP) Java 실습 04 - if, else if, else 활용하기

 

 [ 작업 환경 ]

 

Windows10

jdk-15

 

 

 

 

 

1. Age.java 소스 작성

 

//********************************************************************
//  Age.java       Java Foundations
//
//  Demonstrates the use of an if statement.
//********************************************************************

import java.util.Scanner;

public class Age
{
    
    //-----------------------------------------------------------------
    //  Reads the user's age and prints comments accordingly.
    //-----------------------------------------------------------------
    public static void main (String[] args)
    {
        final int MINOR = 21;

        Scanner scan = new Scanner (System.in);
        System.out.print ("Enter your age: ");
        int age = scan.nextInt();

        System.out.println ("You entered: " + age);

        if (age == 0){
            System.out.println ("It's impossible");
        } else if (age < MINOR){
            System.out.println ("Youth is a wonderful thing. Enjoy.");
        } else {
            System.out.println ("Fighting!");
        }
    }

}

 

 

 

 

 

2. 실행 예시

 

javac Age.java

java Age