是否有一个快捷方式用于在IntelliJ中使用system.out.println包装语句

Question

It appears to me that sometimes I want to print the values of a variable, so I repeat the following actions:

1. write sout TAB (shortcut for system.out.println)
2. write the variable name inside the function

Is it possible in IntelliJ to wrap a variable with a function, using keyboard shortcuts only?

Answer 1

In Intellij Idea 13.1, there is a shortcut way called "postfix code completion".

So, to wrap an expression, object or variable with System.out.println , you simply write its name, put a dot then write sout, then hit tab. So, for example:

new MyObject().sout + <tab>  

will be converted to

System.out.println(new MyObject())

More examples:

"Hello World!".sout

int myVariable = 5;
myVariable.sout

You can get more information about postfix completions on this page: http://blog.jetbrains.com/idea/2014/03/postfix-completion/

Answer 2

You can it with defining a Live Template (configurable in Settings->Live Templates->Surround ). Look for an example of Surround with {} there.

After that you'll be able to select the variable (probably Ctrl+W ), then choosing your template ( Alt+T ) - keyboard only.

Answer 3

Type:

yourVarOrSmthng . sout + Tab

Works in IntelliJ 2019.1.1