Java ArrayList with Double

In Java, the ArrayList class is a resizable array that can store objects. An ArrayList can store any type of objects including Double.

To create an ArrayList of Double in Java, we can use the following syntax:

ArrayList<Double> arrayList = new ArrayList<Double>();

Here, the ArrayList is initialized with a capacity of 10. The capacity can be increased dynamically as per the requirement.

To add an element in the ArrayList, we can use the add method. For example:

arrayList.add(3.14159);
arrayList.add(2.71828);
arrayList.add(1.41421);

To access the elements of the ArrayList, we can use the get method. For example:

Double pi = arrayList.get(0);
Double e = arrayList.get(1);
Double sqrt2 = arrayList.get(2);

To remove an element from the ArrayList, we can use the remove method. For example:

arrayList.remove(1); // removes the element at index 1

To iterate over the elements of the ArrayList, we can use a for-each loop. For example:

for(Double number : arrayList) {
    System.out.println(number);
}

This will print all the elements of the ArrayList.

That's all about creating and using a Java ArrayList with Double.