how to configure the template generator in Intellij?

In IntelliJ IDEA, you can create a template to generate code using Live Templates. Live Templates are pre-built code templates that can be inserted into your code with just a few hotkeys.

Here's a step-by-step guide to creating a template in IntelliJ IDEA:

1. Select "Settings" or "Preferences" (depending on your operating system) (Cntrl + Shift + S).

1. In the settings window, navigate to "Editor" and expand the "Live Templates" option.
2. Select the programming language in which you want to create the template (eg Java, Python, etc.).

1. Click the "+" button on the right side of the window to add a new Live Template.

1. In the "Abbreviation" field, enter an abbreviation that you will use to trigger the template while typing.

1. In the "Template text" field, enter the code you want to generate. You can use variables to automatically fill in specific information, such as a class or method name.

1. Set the context options for the template. This will determine in which situations the template will be suggested. For example, you can set the context so that the template is only applicable in Java files or inside a class.

1. Click "OK" to save the template.

2. Now, whenever you type the abbreviation you defined for the template while typing in a relevant file, IntelliJ IDEA will suggest expanding the template. You can press the Tab key to accept the suggestion and expand the code.

This is an efficient way to save time when generating pattern code in IntelliJ IDEA.