Уставное значение Java ArrayList
import java.util.ArrayList;
public class SetExample {
public static void main(String args[]) {
ArrayList<Integer> arraylist = new ArrayList<Integer>();
arraylist.add(1);
System.out.println(arrayList.get(0));
//1
arrayList.set(0, 2)
System.out.println(arrayList.get(0));
//2
}
}
Joyous Jay