Visual Studio代码导入库

Question

我正在使用Visual Studio Code for Java，并且我希望在使用库的同时调试我的代码。但每当我开始调试时，我就会得到以下错误：

Exception in thread "main" java.lang.Error: Unresolved compilation problems: 
    IO cannot be resolved
    IO cannot be resolved
    IO cannot be resolved

    at TestClass.main(TestClass.java:6)

例如，使用以下代码：

import AlgoTools.IO;

public class TestClass {
    public static void main(String[] args) {
        int a, b;
        a = IO.readInt("Please enter a number ");
        b = IO.readInt("Please enter another number ");

        IO.println("Your number is: " + (a + b));
    }
}

但是，当我使用javac <Filename>在cmd或PowerShell中编译代码，并在java <Classname>中运行它时，它工作得很好。仅当我尝试在Visual Studio代码中进行调试时才会收到错误。

我还应该提到，我在CLASSPATH中添加了.jar库的路径。

我使用的是默认的“启动”调试配置：

{
    "type": "java",
    "name": "Debug (Launch)",
    "request": "launch",
    "cwd": "${workspaceFolder}",
    "console": "internalConsole",
    "stopOnEntry": false,
    "mainClass": "",
    "args": ""
},

Answer 1

你应该安装一个叫做"java extension pack“的扩展和java maven。或者安装该脱机扩展。click here and get extension name

扩展地址：https://marketplace.visualstudio.com/_apis/public/gallery/publishers/vscjava/vsextensions/vscode-java-pack/0.4.0/vspackage