I want to change all items in list.
What is the correct way to do it with java8?
public class TestIt {
public static void main(String[] args) {
ArrayList<String> l = new ArrayList<>();
l.add("AB");
l.add("A");
l.add("AA");
l.forEach(x -> x = "b" + x);
System.out.println(l);
}
}
You can use replaceAll.
Replaces each element of this list with the result of applying the operator to that element.
ArrayList<String> l = new ArrayList<>(Arrays.asList("AB","A","AA"));
l.replaceAll(x -> "b" + x);
System.out.println(l);
Output:
[bAB, bA, bAA]
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