Alt+Enter to import the package, automatic correction
Crtl+X cut and delete this line, before using Eclipse Ctrl+D is to delete, in AndroidStudio is to copy this line to the next line
Ctrl+N Find class
Ctrl+Shift+N Find files
Ctrl+Alt+L Format code
Ctrl+Alt+O Optimize imported classes and packages
Alt+Insert generates code (such as get, set methods, constructors, etc.)
Ctrl+E or Alt+Shift+C recently changed code
Ctrl+R Replace text
Ctrl+F Find text
Ctrl+Shift+Space autocomplete code
Ctrl+space code hint
Ctrl+Alt+Space class name or interface name prompt
Ctrl+P method parameter prompt
Ctrl+Shift+Alt+N Find methods or variables in a class
Alt+Shift+C Compare recently modified code
Shift+F6 Refactor-Rename
Ctrl+Shift+Up key
Ctrl+X delete line
Ctrl+D Duplicate line
Ctrl+/ or Ctrl+Shift+/ Comment (// or)
Ctrl+J Autocode
Ctrl+E recently opened files
Ctrl+H Display class structure diagram
Ctrl+Q to display annotated documentation
Alt+F1 Find the location of the code
Alt+1 Quickly open or hide the project panel
Ctrl+Alt+ left/right Return to last browsed position
Alt+ left/right switch code view
Alt+Up/Down Quickly move positioning between methods
Ctrl+Shift+Up/Down Code moves up/down.
F2 or Shift+F2 Highlight errors or warnings to locate quickly
After entering the code label, press Tab to generate the code.
Select the text, press Ctrl+Shift+F7, highlight all the text, press Esc to highlight disappear.
Ctrl+W to select the code, continuous pressing will have other effects
Select the text, press Alt+F3 to find the same text one by one and highlight it.
Ctrl+Up/Down cursor jumps to the first or last line
Ctrl+B Quickly open the class or method at the cursor
Most frequently used shortcut keys
1. Ctrl+E, you can display the list of recently edited files
2.Shift+Click can close the file
3.Ctrl＋[或]可以跳到大括号的开头结尾
4.Ctrl＋Shift＋Backspace可以跳转到上次编辑的地方
5.Ctrl＋F12，可以显示当前文件的结构
6.Ctrl＋F7可以查询当前元素在当前文件中的引用，然后按F3可以选择
7.Ctrl＋N，可以快速打开类
8.Ctrl＋Shift＋N，可以快速打开文件
9.Alt＋Q可以看到当前方法的声明
10.Ctrl＋W可以选择单词继而语句继而行继而函数
11.Alt＋F1可以将正在编辑的元素在各个面板中定位
12.Ctrl＋P，可以显示参数信息
13.Ctrl＋Shift＋Insert可以选择剪贴板内容并插入
14.Alt＋Insert可以生成构造器/Getter/Setter等
15.Ctrl＋Alt＋V 可以引入变量。例如把括号内的SQL赋成一个变量
16.Ctrl＋Alt＋T可以把代码包在一块内，例如try/catch
17.Alt＋Up and Alt＋Down可在方法间快速移动
18.在一些地方按Alt＋Enter可以得到一些Intention Action，例如将”==”改为”equals()”
19.Ctrl＋Shift＋Alt＋N可以快速打开符号
20.Ctrl＋Shift＋Space在很多时候都能够给出Smart提示
21.Alt＋F3可以快速寻找
22.Ctrl＋/和Ctrl＋Shift＋/可以注释代码
23.Ctrl＋Alt＋B可以跳转到抽象方法的实现
24.Ctrl＋O可以选择父类的方法进行重写
25.Ctrl＋Q可以看JavaDoc
26.Ctrl＋Alt＋Space是类名自动完成
27.快速打开类/文件/符号时，可以使用通配符，也可以使用缩写
28.Live Templates! Ctrl＋J
29.Ctrl＋Shift＋F7可以高亮当前元素在当前文件中的使用
30.Ctrl＋Alt＋Up /Ctrl＋Alt＋Down可以快速跳转搜索结果
31.Ctrl＋Shift＋J可以整合两行
32.Alt＋F8是计算变量值