IntelliJ tips

Important Tips

How to change the method signature and add a default value for the new parameter using the refactoring tool.
How to introduce a parameter from a literal or a formula and how to inline a parameter if all the callers pass the same argument.
How to introduce a parameter object to group together some parameters that are passed along many methods and how to reuse an existing parameter object
How to extract a method from a piece of code and how to inline a method back into the caller.
How to move a method into a parameter or a dependency to improve the design and cohesion of the code.
How to encapsulate a field and generate getters and setters for it.
How to extract a variable from a complex expression and how to use the syntax aware selection to choose the right scope.
How to extract a delegate to create a new class from a method and move it into a dependency.