HelloWorld.md

# Hello World


以下 `Hello World` 程序中，能够正确输出内容的是：

## aop

### after

```java
App.main(new String[]{});
```

## 答案

```java

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

## 选项

### A

```java

public class App {
    public int main(){
        System.out.printf("Hello World");
        return 0;
    }
}
```

### B

```java

public class App {
    public static void main(String[] args){
        println("Hello World");
    }
}
```

### C

```java
import stdout

public class App {
    public int main(){
        print("Hello World\n");
        return 0;
    }
}

```