查看幫助：Help | Tip of the Day
快速打開類：Ctrl+N (Navigate | Class)
快速補全： Ctrl+空格
查看方法在哪里使用：Alt+F7 (Edit | Find | Find Usages )
查看類的文檔： Ctrl+Q (View | Quick Documentation)
查看變量的生命的位置： Ctrl+B (Navigate | Declaration) || ctrl+click
大綱視圖：Ctrl+F12 (Navigate | File Structure)
類的重命名：Shift+F6 (Refactor | Rename)
重寫方法： Ctrl+O (Code | Override Methods).
實現(xiàn)方法： Ctrl+I (Code | Implement methods).
查找最適合的參數(shù)：輸入部分后 press Ctrl+Shift+空格
自動補全tab的坑：
When using Code Completion, you can accept the currently highlighted selection in the popup list with Tab key.
Unlike accepting with the Enter key, the selected name will overwrite the rest of the name to the right of the caret. This can be especially useful for replacing one method or variable name with another.
快速關(guān)閉tabs頁：
Did you know that you can close tabs in the editor and the tool windows of IntelliJ IDEA without actually using the context menu commands? It is enough to point with your mouse cursor to a tab to be closed, and click the middle mouse button, or just use the Shift+click combination.
快速生成set get 方法:Alt+Insert (Code | Generate)
快速選中： Alt+F1
快速返回編輯框：The Esc key in any tool window moves the focus to the editor.
Shift+Esc moves the focus to the editor and also hides the current (or last active) tool window.
快速返回工具框：
The F12 key moves the focus from the editor to the last focused tool window.
快速try catch:Ctrl+Alt+T
快速添加new 的類名 ： Ctrl+Shift+空格
接口的實現(xiàn)方法快速查找： Ctrl+Alt+B
單行注釋與多行注釋： Ctrl+斜杠 and Ctrl+Shift+斜杠.
類型轉(zhuǎn)換時： Ctrl+Shift+空格
只能變量名：Ctrl+空格.
快速生成參數(shù)：Ctrl+P（光標(biāo)在括號內(nèi)）
上次編輯的位置：Ctrl+Shift+Backspace (Navigate | Last Edit Location)
變量高亮顯示： Ctrl+Shift+F
定位高亮： F3
取消高亮：escape
快速查看方法生命： Alt+Q (View | Context Info)
快速查看最近編輯的文檔：Ctrl+E (View | Recent Files)
錯誤定位切換：F2/Shift+F2
快速查看不清楚的變量： Ctrl+J
快速切換方法：Alt+向上箭頭 and Alt+向下箭頭
黏貼： Ctrl+Shift+V
尋找父類： Ctrl+H (Navigate | Type Hierarchy).
嘗試運行一段代碼：hold Alt and click this expression to see its value and calculate it, call a method, etc.
最近變動文檔： Alt+Shift+C
快速補全代碼： Ctrl+Shift+Enter
快速查看定義：Ctrl+Shift+I (View | Quick Definition)
查看jdk類： Ctrl+Alt+Shift+C:
返回源代碼編輯： Ctrl+V
運行或者調(diào)試： Alt+Shift+F10
查找：Ctrl+F
比較： Ctrl+D.
提交歷史：Ctrl+K