??博客主頁(yè)：愛(ài)敲代碼的小楊.
?專(zhuān)欄：《Java SE語(yǔ)法》
??感謝大家點(diǎn)贊????收藏?評(píng)論???，您的三連就是我持續(xù)更新的動(dòng)力??
0. 前言
工欲善其事必先利其器，作為一名Java開(kāi)發(fā)者，手上必須得有趁手的工具。市面上的Java開(kāi)發(fā)IDE有：Eclipse、NetBeans、Lightly、IntelliJ IDEA、JDeveloper 。
作者推薦使用IntelliJ IDEA，為什么推薦它呢？
- 提供了強(qiáng)大的代碼編輯功能，包括代碼補(bǔ)全、語(yǔ)法高亮、代碼重構(gòu)等。
- 有豐富的插件支持，可以滿足各種項(xiàng)目的需求。
- 支持自動(dòng)化構(gòu)建、測(cè)試和部署，可以提高開(kāi)發(fā)效率。
- 提供了強(qiáng)大的調(diào)試工具，可以快速定位和解決問(wèn)題。
- 支持多版本控制系統(tǒng)，如Git、SVN等
- 可以與其他開(kāi)發(fā)工具（如Maven、Gradle等）無(wú)縫集成，方便開(kāi)發(fā)者進(jìn)行項(xiàng)目管理。
PS:安裝IDEA之前需要安裝JDK，JDK安裝教程
1. 下載IntelliJ IDEA
官網(wǎng)地址
IntelliJ IDEA支持Windows、macOS、Linux，根據(jù)自己的操作系統(tǒng)下載即可。
如果不想下載最新版本的IntelliJ IDEA，也可以下載其他版本。
這里作者就用2022.3.3版本做演示：
點(diǎn)擊下載：
2. 安裝IntelliJ IDEA
下載后雙擊安裝包
單擊next
選擇安裝路徑，作者這里選擇C:\APP\Java\IntelliJ IDEA路徑
【注意】:路徑中盡量不要有中文、空格。
然后一直next即可，完成安裝。
3. 激活I(lǐng)ntelliJ IDEA
輸入激活碼
激活碼如下：選擇對(duì)應(yīng)版本即可。
-
2018.2及以后版本：2018、2019、2020、2021、2022、2023均可使用！
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2018.1及以前版本：2016、2017均可使用！
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4. 新建項(xiàng)目
設(shè)置項(xiàng)目名、項(xiàng)目存放地址以及JDK版本（由于作者電腦安裝了JDK1.8和JDK17所以這里就有兩個(gè)JDK版本）
運(yùn)行程序：右鍵——Run
5. 基礎(chǔ)設(shè)置
5.1 設(shè)置字體大小
file->Settings->Editor->Font
個(gè)人建議把字體大小設(shè)置為18，顯示器最好能看30行代碼。
5.2 鼠標(biāo)滾輪調(diào)整字體大小
file->Settings->Editor->Change font size with Ctrl + Mouse Wheel in，勾選Change font size with Ctrl + Mouse Wheel in選項(xiàng)即可。
5.3 忽略文件
file->Settings->Editor->file Tyes ->lgnores and Folders
這里作者添加了*.dea和*iml忽略.idea文件夾和以后綴為.iml的文件
5.4 方法分割線
file->Settings->Editor->General->Appearnce->show method separstors
5.5 詢問(wèn)文件
6. 常用快捷鍵
| 快捷鍵組合 | 實(shí)現(xiàn)效果 |
|---|---|
| psvm + Tab鍵 / main + Tab鍵 | public static void main(String[] args) |
| sout + Tab鍵 | System.out.println() |
| Ctrl + X | 刪除當(dāng)前行 |
| Ctrl +D | 復(fù)制當(dāng)前行 |
| Alt+Insert(或右鍵Generate) | 生成代碼(如get,set方法,構(gòu)造函數(shù)等) |
| Ctrl+Alt+T | 生成try catch （或者 Alt+enter選擇） |
| CTRL+ALT+T | 把選中的代碼放在 TRY{} IF{} ELSE{} 里 |
| Ctr+shift+U | 實(shí)現(xiàn)大小寫(xiě)之間的轉(zhuǎn)化 |
| ALT+回車(chē) | 導(dǎo)入包,自動(dòng)修正 |
| CTRL+ALT+L | 格式化代碼 |
| CTRL+ALT+I | 自動(dòng)縮進(jìn) |
| CTRL+E | 最近更改的代碼 |
| fori | 生成for (int i = 0; i < ; i++) {} |
| Alt + <–左右–>鍵 | 實(shí)現(xiàn)窗口左右更換（多窗口） |
| Ctrl + 鼠標(biāo)點(diǎn)擊 | 快速找到成員變量的出處 |
| Shift+F6 | 重構(gòu)/重命名 (包、類(lèi)、方法、變量、甚至注釋等) |
| CTRL+Q | 查看當(dāng)前方法的聲明 |
| Ctrl+Alt+V | 自動(dòng)創(chuàng)建變量（new 對(duì)象();之后選擇按快捷鍵） |
| Ctrl+O | 重寫(xiě)方法 |
| Ctrl+I | 實(shí)現(xiàn)方法 |
| ALT+/ | 代碼提示 |
| Ctrl+Shift+R | 在當(dāng)前項(xiàng)目中替換指定內(nèi)容 |
| Ctrl+E | 最近編輯的文件列表 |
| Ctrl+P | 顯示方法參數(shù)信息 |
| Ctrl+Shift+Insert | 查看歷史復(fù)制記錄，idea可以保留歷史復(fù)制的 100 條記錄 |
7. 插件
-
CodeGlance
CodeGlance是一款代碼編輯區(qū)縮略圖插件，可以快速定位代碼，使用起來(lái)比拖動(dòng)滾動(dòng)條方便多了
-
彩虹顏色括號(hào)：Rainbow Brackets
-
阿里代碼規(guī)約檢測(cè)：Alibaba Java Coding Guidelines
-
漢化插件：chinese（個(gè)人建議盡量不要漢化）
最后建議，插件宜少不宜多，選擇最適合最需要使用的就行，不必貪多，否則可能會(huì)適得其反，IDEA會(huì)變得臃腫卡頓，反而影響開(kāi)發(fā)效率。
8. IDEA 調(diào)試工具
IDEA 調(diào)試方式：首先需要設(shè)置斷點(diǎn)，然后單擊蟲(chóng)子按鈕進(jìn)入 DeBug模式。文章來(lái)源：http://www.zghlxwxcb.cn/news/detail-799830.html
文章來(lái)源地址http://www.zghlxwxcb.cn/news/detail-799830.html
| 快捷鍵 | 操作 |
|---|---|
| F8 | 單步調(diào)試（不進(jìn)入函數(shù)內(nèi)部） |
| F7 | 單步調(diào)試（進(jìn)入函數(shù)內(nèi)部） |
| shift + F7 | 選擇要進(jìn)入的函數(shù) |
| shift + F8 | 跳出函數(shù) |
| alt + F9 | 運(yùn)行到斷點(diǎn) |
| alt + F8 | 執(zhí)行表達(dá)式查看結(jié)果 |
| F9 | 繼續(xù)執(zhí)行，進(jìn)入下一個(gè)斷點(diǎn)或執(zhí)行完程序 |
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