ClosuresBlog2MapExample2.java

public static  List map(List list, Function mapping) { 

    List result = new ArrayList(); 
    for (T elem : list) { 
        result.add(mapping.apply(elem)); 
    } 
    return result; 
} 

public static void main (String[] args) { 
    List inputList = 
            Arrays.asList("functional", "programming", "with", "closures"); 

    List mappedList = map(inputList, s -> s.length()); 

    System.out.println("Initial List: " + inputList); 
    System.out.println("Mapped List: " + mappedList); 
}