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 vote401 views1 answer
Java remove non numbers from string
Java
0 vote437 views1 answer
Java run code at interval
Java
0 vote344 views2 answers
Change fragment in android studio
Java
0 vote368 views1 answer
Boucle for avec un tableau java
Java
0 vote374 views1 answer
How to get address of object in java
Java
0 vote422 views1 answer
Float maximum value java
Java
0 vote362 views1 answer
Printing array list through for loop in java
Java
-1 vote396 views1 answer
Spring jpa query with union all
Java Spring
2 votes369 views1 answer
What are method in java
Java
0 vote342 views1 answer
Attempt to invoke virtual method 'void androidx.appcompat.app.ActionBar.setTitle(java.lang.CharSequence)' on a null object reference
Java