Finish all functions and create junit test file

import java.util.List; import java.util.function.Function; import java.util.function.BiFunction; import java.util.function.Predicate;

public class hw2 { static List map(Iterable l, Function f) { return null; }

static V foldLeft(V e, Iterablel, BiFunction f){ return null; }

static V foldRight(V e, Listl, BiFunction f){ return null; }

static List filter(List l, Predicate p){ return null; }

static U binFoldLeft(U e, Listl, BiFunction f){ return null; }

public static void main(String[] args) { // Use map to implement the following behavior (described in Python). i.e given a List create a List of the hashes of the objects. // names = ['Mary', 'Isla', 'Sam'] // for i in range(len(names)): // names[i] = hash(names[i]) // Use foldleft to calculate the sum of a list of integers. // i.e write a method: int sum(List l) // Use foldRight to concatenate a list of strings i.e write a method // String s (List l) // consider an array of Persons. Use filter to // print the names of the Persons whose salary is // greater than 100000 //Use binFoldLeft to find the number of occurrences // of 5 in an array of integers

}

}

class Person{ final int salary; final String name; Person(int salary, String name){ this.salary = salary; this.name = name; } int getSalary() { return salary; } String name() { return name;} }