오류 점검

1. JVM에서 static을 찾는다

class Person1{ // custom 자료형
    static int age = 20;
    char gender = '여'; //primitive(원시) 자료
}

public class MemEx01 {
    public static void adsf(String[] args) { //main으로 해야 실행이 가능하다 , 모든 것은 Mem에 떠야한다
        System.out.println(Person1.age);
        
    }
}

오류사례 1

Error: Main method not found in class ex04.MemEx01, please define the main method as:
   public static void main(String[] args)
or a JavaFX application class must extend javafx.application.Application

class Person1{ // custom 자료형
    static int age = 20;
    char gender = '여'; //primitive(원시) 자료
}

public class MemEx01 {
    public static void adsf(String[] args) { //main으로 해야 실행이 가능하다 , 모든 것은 Mem에 떠야한다
        System.out.println(Person1.age);
        
    }
}

오류사례 2

Error: Main method is not static in class ex04.MemEx01, please define the main method as:
   public static void main(String[] args)

D:\tools\jdk-21.0.1\bin\java.exe "-javaagent:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2023.3\lib\idea_rt.jar=53556:C:\Program Files\JetBrains\IntelliJ IDEA Community Edition 2023.3\bin" -Dfile.encoding=UTF-8 -Dsun.stdout.encoding=UTF-8 -Dsun.stderr.encoding=UTF-8 -classpath D:\workspace\java_lec\study\out\production\study ex04.MemEx01
20
여

Process finished with exit code 0