VSCode 运行Java

安装插件

依次点击查看,扩展,然后在搜索框中输入Java Extension Pack,然后安装这个插件,安装完毕后重启VSCode.

设置允许参数

打开要运行的java文件.然后点击查看,调试,点击添加配置,然后选择环境为Java,这个时候会生成一个launch.json的文件,如下所示:

{
    // 使用 IntelliSense 了解相关属性。 
    // 悬停以查看现有属性的描述。
    // 欲了解更多信息，请访问: https://go.microsoft.com/fwlink/?linkid=830387
    "version": "0.2.0",
    "configurations": [
        {
            "type": "java",
            "name": "Debug (Launch)-CollectionEach",
            "request": "launch",
            "cwd": "${workspaceFolder}",
            "console": "internalConsole",
            "stopOnEntry": false,
            "mainClass": "CollectionEach",
            "args": ""
        },
        {
            "type": "java",
            "name": "Debug (Launch)-ForeachTest",
            "request": "launch",
            "cwd": "${workspaceFolder}",
            "console": "internalConsole",
            "stopOnEntry": false,
            "mainClass": "ForeachTest",
            "args": ""
        },
        {
            "type": "java",
            "name": "Debug (Launch)-IntStreamTest",
            "request": "launch",
            "cwd": "${workspaceFolder}",
            "console": "internalConsole",
            "stopOnEntry": false,
            "mainClass": "IntStreamTest",
            "args": ""
        },
        {
            "type": "java",
            "name": "Debug (Attach)",
            "request": "attach",
            "hostName": "localhost",
            "port": 0
        }
    ]
}

其中每一项配置对应一个java文件.例如,CollectionEach.java对应的配置如下:

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

其中mainClass表示main方法所在的类名.
args表示命令行参数.
其他配置我还不懂,先这样.

开始调试

调试各项功能,如下图所示: