Answers for "how to convert int array to arraylist"

6

integer arraylist to int array

//only works in java 8 or later
list.stream().mapToInt(i -> i).toArray();
Posted by: Guest on July-12-2020
2

convert int array to integer list java

int[] arr = {1,2,3};
IntStream.of(arr).boxed().collect(Collectors.toList());
Posted by: Guest on May-22-2020
2

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);
Posted by: Guest on November-13-2020
0

convert array of int to arraylist java

int[] ints = {1, 2, 3};
List<Integer> intList = new ArrayList<Integer>(ints.length);
for (int i : ints)
{
    intList.add(i);
}
Posted by: Guest on April-12-2020
-1

convert Integer arraylist to array java

Your_ArrayList_Name.stream().mapToInt(k->k).toArray();
Posted by: Guest on February-05-2021

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