I want to add java file for change payment methods

Topic summary

A user is attempting to modify payment methods by working with code snippets. They have extracted code from JavaScript and now need guidance on:

  • How to properly integrate this code into a Java file
  • Implementing manual payment methods
  • Adding the necessary code for manual payment processing

The request suggests they are trying to customize or extend payment functionality but are uncertain about the technical implementation steps required to connect JavaScript code with Java-based payment method configuration.

Summarized with AI on November 19. AI used: claude-sonnet-4-5-20250929.

Recently i have snipped a code from java script now i need to paste it for my manual payment methods please guide me how to add code for manual payments.