arraylist insert at position
import java.util.ArrayList;
public class ArrayListAddMethodExample
{
public static void main(String[] args)
{
// creating an empty ArrayList with initial capacity
ArrayList<Integer> al = new ArrayList<Integer>(6);
al.add(12);
al.add(14);
al.add(16);
al.add(18);
al.add(20);
// adding element 15 at fourth position
al.add(3, 15);
for(Integer number : al)
{
System.out.println("Number: " + number);
}
}
}
4.33
6
//Insert a value by using arrayName.add(index, value)
//Will not remove current element at index. Will simply move all elements to
//the right.
import java.util.ArrayList;
public class main{
public static void main(String[] args){
ArrayList<Integer> list = new ArrayList<Integer>();
list.add(0);
list.add(1);
list.add(2);
list.add(3);
list.add(4);
list.add(5);
list.add(0, 100);
//enhanced for loop will print all elements of the ArrayList
for(int element : list){
System.out.print(list + ", ");
}
//Expected output: "100, 0, 1, 2, 3, 4, 5, "
}
}
Thank you!
6
0
4
1
ArrayList<String> arrayList = new ArrayList<>();
// Adds element at the back of the list
arrayList.add("foo");
arrayList.add("bar");
// Result = ["foo", "bar"]
// Adds element at the specified index
arrayList.add(1, "baz");
// Result = ["foo", "baz", "bar"]
Thank you!
1
0
3.86
7
//public void add (int index , E element)
Thank you!
7
0
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