Arraylist to java

Java arraylist to array

List<String> list = new ArrayList<>();
list.add("a");
list.add("ab");
list.add("abc");
list.add("abcd");
// convert
String[] array = list.toArray();

Convert arraylist to array in java

Integer[] arr = new Integer[al.size()]; 
  
        // ArrayList to Array Conversion 
        for (int i = 0; i < al.size(); i++) 
            arr[i] = al.get(i);

Arraylist to java

You can only use the to array method if you convert to any object type.

Similar codes

0 vote349 views4 answers
Dataframe to dict without index
Java
1 vote313 views1 answer
Making android activity fullscreen android studio
Java
10 votes343 views3 answers
Substring in java
Java
1 vote304 views1 answer
Como utilizar random en java
Java
0 vote388 views1 answer
Java JPanel set background color
Java
0 vote318 views1 answer
Could not resolve project :app
Java
0 vote327 views1 answer
Autorest generate java client
Java
0 vote351 views1 answer
ArrayList of prime numbers
Java
1 vote351 views2 answers
Codeforces - 570b java
Java
0 vote325 views1 answer
Convert class to xml string
Java