Lambda expression to convert array/List of String to array/List of Integers

Question

Since Java 8 comes with powerful lambda expressions,

I would like to write a function to convert a List/array of Strings to array/List of Integers, Floats, Doubles etc..

In normal Java, it would be as simple as

for(String str : strList){    intList.add(Integer.valueOf(str)); } 

But how do I achieve the same with a lambda, given an array of Strings to be converted to an array of Integers.

Answer 1

List<Integer> intList = strList.stream()                                .map(Integer::valueOf)                                .collect(Collectors.toList());