alt+Insert
psvm
sout
ctrl+d
ctrl+y
ctrl+shift+Up/Do
ctrl+n
alt+Insert
alt+Enter(导包,生成变量)
ctrl+/ ctrl+shift+/
shift+F6
fori 回车
ctrl+alt+t try-catch,if,while等
ctrl+/
点击源码:ctrl+鼠标悬浮代码点进去
前进/后退:ctrl+alt+←/→
alt+7
alt+1
ctrl+z
ctrl+c ctrl+v
tab shift+tab