java - "Exception in thread "main "java.lang.Error"在一个简单的程序中

Question

我最近安装了 Visual Studio Code 并尝试运行一个简单的程序

import java.util.*;
public class HelloWorld {
public static void main(String[] args) {
   System.out.print("Hello World");
}

但是我明白了

Exception in thread "main" java.lang.Error: Unresolved compilation problem: 

at HelloWorld.main(nush.java:3)

我正在使用 java 开发工具包 11.0.1，这是我的 launch.json

{
"configurations": [
    {
        "type": "java",
        "name": "CodeLens (Launch) - HelloWorld",
        "request": "launch",
        "cwd": "${workspaceFolder}",
        "console": "internalConsole",
        "stopOnEntry": false,
        "mainClass": "HelloWorld",
        "args": ""
    }
]

Answer 1

public class HelloWorld 必须保存在名为 HelloWorld.java 的文件中，而不是 nush.java