Static import문을 이용한 코드 간결화

class Main{
    public static void main(String[] args) {
        System.out.println("Hello World");
        System.out.println("Hello World");
        System.out.println("Hello World");
        System.out.println("Hello World");
        System.out.println("Hello World");
        System.out.println("Hello World");
    }
}

import static java.lang.System.*; //static import 문
class Main{
    public static void main(String[] args) {
        out.println("Hello World");
        out.println("Hello World");
        out.println("Hello World");
        out.println("Hello World");
        out.println("Hello World");
        out.println("Hello World"); // 원래는 System.out이지만, System 생략 가능
    }
}