Is there a way to get wrapper classes in soloLearn

Question

I'm asking this because when I try to make an Interger object it doesn't make one in the soloLearn ide, if not is there a way for me to make an arraylist of primitive objects in soloLearns ide in Java?

Answer 1

// Interger x = 5; //typo Inte(r)ger
Integer x = 5;

Answer 2

ArrayList can't stores primitive int, but it can automatically convert int to Integer object as element.
Integer stores one primitive int.
ArrayList<Integer> list1 = new ArrayList<>(Arrays.asList(0,1,2,3,4,5));
list1.add(100);
System.out.println( list1 );
3th party libraries can store primitive int similar way

Answer 3

zemiak I know that but try making an Interger object in soloLearn it doesn't have it in the java library

Answer 4

Integer oi =100; // this ?

Answer 5

zemiak
Yeah it works in all ides but soloLearn must not have the entire java library because it outputs errors
https://code.sololearn.com/c3clzjW2rT9d/?ref=app

Answer 6

zemiak that is embarrassing, thanks

Answer 7

:-D