2. a)What is the index where “first” is stored?b)What is the capacity of the ArrayList?c)What is the size of the ArrayList?d)Write the Java code that would insert the the Strings “first”, “second”, “third” into the original arraycreated in the above.e)What would happen if you inserted the Strings “first”, “second”, “third” and “fourth” into the original array? ### Understanding ArrayList in JavaAn `ArrayList` in Java is a resizable array, which can be found in the `java.util` package. It is part of Java's collections framework and implements the `List` interface. Unlike standard arrays that have a fixed length, an `ArrayList` can automatically resize itself when elements are added or removed.#### Inserting Elements into an ArrayListWhen we insert elements into an `ArrayList`, it dynamically adjusts its size. Here is an example to illustrate this behavior.**Example: Adding a String to an ArrayList**1. **Problem Statement:** We want to insert the String "first" into an `ArrayList`.2. **Visualization:** The following diagram shows what the `ArrayList` looks like after inserting the String "first": ``` ----------------------- | | first | | ----------------------- ```In this diagram, we observe that after inserting the String "first", the `ArrayList` has adjusted itself to accommodate the new element. Initially, the `ArrayList` might contain empty slots for future insertions.To summarize, the image shows a simple visualization of the `ArrayList` containing one element ("first") in its first position, with additional capacity allocated for potential future entries.

ArrayList is a re-sizable list, which stores object of given type to it, we add, remove and modify…

2. a)What is the index where “first” is stored? b)What is the capacity of the ArrayList? c)What is the size of the ArrayList? d)Write the Java code that would insert the the Strings “first”, “second”, “third” into the original arraycreated in the above. e)What would happen if you inserted the Strings “first”, “second”, “third” and “fourth” into the original array?

2. a)What is the index where “first” is stored? b)What is the capacity of the ArrayList? c)What is the size of the ArrayList? d)Write the Java code that would insert the the Strings “first”, “second”, “third” into the original arraycreated in the above. e)What would happen if you inserted the Strings “first”, “second”, “third” and “fourth” into the original array?

C++ Programming: From Problem Analysis to Program Design

8th Edition

ISBN:9781337102087

Author:D. S. Malik

Publisher:D. S. Malik

Chapter18: Stacks And Queues

Section: Chapter Questions

Problem 16PE: The implementation of a queue in an array, as given in this chapter, uses the variable count to...

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Concept explainers

Array

The simplest way to start thinking about an array is as a collection, or a set of elements. In programming, these elements may be constants, variables, functions and pointers.

Question

100%

a)What is the index where “first” is stored?

b)What is the capacity of the ArrayList?

c)What is the size of the ArrayList?

d)Write the Java code that would insert the the Strings “first”, “second”, “third” into the original arraycreated in the above.

e)What would happen if you inserted the Strings “first”, “second”, “third” and “fourth” into the original array?

### Understanding ArrayList in Java

An `ArrayList` in Java is a resizable array, which can be found in the `java.util` package. It is part of Java's collections framework and implements the `List` interface. Unlike standard arrays that have a fixed length, an `ArrayList` can automatically resize itself when elements are added or removed.

#### Inserting Elements into an ArrayList

When we insert elements into an `ArrayList`, it dynamically adjusts its size. Here is an example to illustrate this behavior.

**Example: Adding a String to an ArrayList**

1. **Problem Statement:**
We want to insert the String "first" into an `ArrayList`.

2. **Visualization:**
The following diagram shows what the `ArrayList` looks like after inserting the String "first":

```
-----------------------
| | first | |
-----------------------
```

In this diagram, we observe that after inserting the String "first", the `ArrayList` has adjusted itself to accommodate the new element. Initially, the `ArrayList` might contain empty slots for future insertions.

To summarize, the image shows a simple visualization of the `ArrayList` containing one element ("first") in its first position, with additional capacity allocated for potential future entries.

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