Question

public class Main {
    public static void main(String[] args) {
        //Set your print into the console
        System.out.println("Hello World");
    }
}

我曾尝试通过命令提示符（cmd.exe）执行该程序，但它一直在输出错误。

我希望与世界打招呼，但我得到：

Error: could not find or load main class MyClass.java

Answer 1

由于您几乎没有提供任何信息，所以很难说出错误在哪里。

这是将打印“ Hello World”的代码

public class Main {
    //Class name is irrelevent, but it must be the same as the filename

    //Define a main method, it HAS to be public, static and called 'main' and should     
    //receive a String array and return void (just copy the next row)
    public static void main(String[] args) {
        //Set your print into the console
        System.out.println("Hello World");
    }

}

现在通过在终端中输入来编译文件：

javac <the path to your .java file>

然后：

java <classname (here Main)>

无法在Windows上运行Hello World Java程序

1 个答案: