integer arraylist
ArrayList<Integer> contractValue = new ArrayList<Integer>();integer arraylist
ArrayList<Integer> contractValue = new ArrayList<Integer>();integer arraylist to int array
//only works in java 8 or later
list.stream().mapToInt(i -> i).toArray();arraylist in java
import java.util.ArrayList;
public class ArrayListExample
{
public static void main(String[] args)
{
int num = 14;
// declaring ArrayList with initial size num
ArrayList<Integer> al = new ArrayList<Integer>(num);
// append new element at the end of list
for(int a = 1; a <= num; a++)
{
al.add(a);
}
System.out.println(al);
// remove element at index 7
al.remove(7);
// print ArrayList after deletion
System.out.println(al);
// print elements one by one
for(int a = 0; a < al.size(); a++)
{
System.out.print(al.get(a) + " ");
}
}
}Copyright © 2021 Codeinu
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