Please answer all parts

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Part 2:

Part 3:

Part 4:

We are given a list named "customers" that contains Customer type objects. These objects have a public instance method named "getName" that returns a String type. Here is Java code for the function: Function XXXXX,YYYYY> getNameLengthFct = (cust) > cust.getName().length(); What should XXXXX be? We are given a list named "customers" that contains Customer type objects. These objects have a public instance method named "getName" that returns a String type. Here is Java code for the function: Function getNameLengthFct = (cust) > cust.getName().length(); What should YYYYY be? We are given a list named "customers" that contains Customer type objects. These objects have a public instance method named "getName" that returns a String type. In the code below, assume that the five customers have the following names: ABC, XYZ, TreeCo, Rando, Zeeee. Here is Java code: List customers = fiveCustomers(); List lengths = mapElements(customers, (cust) > cust.getName().length()); int result = sum(lengths); What will the "result" value be after the code runs? (enter a number) Here is Java code for a method "mapElements" private T,S> List S> mapElements(List list, Function AAAAA,BBBBB> mapFct) \{ List newList = new ArrayList (); for (T next: list) \{ newList.add(mapFct.apply(next)); 3 return newList; \} What should AAAAA be