What is the interface between the application language and high level language?

The interface between an application language and a high-level language typically consists of Application Programming Interfaces (APIs) or language bindings that allow the two to communicate. This interface enables the application to utilize functionalities provided by the high-level language, such as accessing libraries or system resources. It often includes mechanisms for data exchange, error handling, and method invocation, ensuring seamless integration and interaction between the two layers. Additionally, this interface may facilitate type conversion and memory management to maintain compatibility.