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I want to convert String array to ArrayList. For example String array is like:
String[] words = new String[]{"ace","boom","crew","dog","eon"};
How to convert this String array to ArrayList?
5 Answers
Use this code for that,
import java.util.Arrays;
import java.util.List;
import java.util.ArrayList;
public class StringArrayTest {
public static void main(String[] args) {
String[] words = {"ace", "boom", "crew", "dog", "eon"};
List<String> wordList = Arrays.asList(words);
for (String e : wordList) {
System.out.println(e);
}
}
}
new ArrayList( Arrays.asList( new String[]{"abc", "def"} ) );
Using Collections#addAll()
String[] words = {"ace","boom","crew","dog","eon"};
List<String> arrayList = new ArrayList<>();
Collections.addAll(arrayList, words);
String[] words= new String[]{"ace","boom","crew","dog","eon"};
List<String> wordList = Arrays.asList(words);
in most cases the List<String> should be enough. No need to create an ArrayList
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
...
String[] words={"ace","boom","crew","dog","eon"};
List<String> l = Arrays.<String>asList(words);
// if List<String> isnt specific enough:
ArrayList<String> al = new ArrayList<String>(l);
