Answers for "list integer to array in java"

list to int array in java 8

int[] array = list.stream().mapToInt(i->i).toArray();

Posted by: Guest on July-30-2020

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

convert list of integer to array in java

List<Integer> al = new ArrayList<Integer>(); 
Integer[] arr = new Integer[al.size()]; 
arr = al.toArray(arr);

Posted by: Guest on May-22-2020

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

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