Description: Creating an application in iFogSim involves defining its components, interactions, and execution flows. Start with initializing an Application object with a unique identifier and user ID, followed by adding application modules representing tasks or processes using addAppModule, where each module specifies its name and resource requirements. Define data flow and dependencies between these modules by establishing edges using addAppEdge, which links modules with data tuples and specifies the direction, type, and communication parameters. Map data tuples to modules for processing using addTupleMapping, assigning selectivity rates to ensure proper data handling. Construct application loops with AppLoop objects to define sequences of module executions, which represent the application's operational logic. Combine modules, edges, tuple mappings, and loops into the application object to complete its structure.