The purpose of writing this blog post is to facilitate my own review, so the content of the article is not comprehensive.
Download JDK: http://www.oracle.com/technetwork/java/javase/downloads/index.html
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Shortcut key
ctrl+Y: delete line
ctrl+/ : single-line comment
ctrl+shift +/ : multi-line comment
ctrl + D: copy line
ctrl+shift + up and down arrow keys: exchange line
ctrl + alt + L: format
ctrl+shift + F12: maximize and minimize editing window
hold down the mouse wheel key: column mode editing
alt + Enter: automatic error correction, can be used to automatically import packages
alt + insert: quickly insert code to generate code
ctrl + space: automatic code prompt
(Because the insert key is inconvenient to use, this needs to be reset)
ctrl+h: open the inheritance view of the class
ctrl+ alt+o: clean up the import
ctrl+F12: view the structure of the class ctrl+F: search ctrl+R
in this file
: replace ctrl + shift + T in this file
: quickly create a unit test unit test
shift + F6 : rename
ctrl+shift + = : expand code
ctrl+shift + - : collapse code
ctrl+shift + up and down arrow keys: swap lines -
Reset shortcut keys
Find these two in the setting interface, Generate is quick code generation, and Basic is automatic code prompt.