```plaintextmyList.set(0, "b");ArrayList content: ________________________________________________________Your explanation (where this output came from): _____________________________________________________________________________________________________myList.add(1, "y");ArrayList content: ________________________________________________________Your explanation (where this output came from): _____________________________________________________________________________________________________myList.remove(3);ArrayList content: ________________________________________________________Your explanation (where this output came from): _____________________________________________________________________________________________________``` The image shows a series of code operations involving an ArrayList in Java. Each operation is followed by a section to describe the expected content of the list after the operation and an area to explain why the content appears as it does. These exercises are typical in programming education to help students understand how list operations modify data within a list structure. **Educational Content on ArrayList Operations****Instruction:**Execute the following statements over an initially empty ArrayList named `myList`, one after another (cascade). After executing each statement, explain what was changed (what did it do?).---**1. Statement:**```javamyList.add("z");```- **ArrayList content:** `________________________________________________`- **Your explanation (where this output came from):** `________________________________________________`---**2. Statement:**```javamyList.add(0, "a");```- **ArrayList content:** `________________________________________________`- **Your explanation (where this output came from):** `________________________________________________`---**3. Statement:**```javamyList.add("t");```- **ArrayList content:** `________________________________________________`- **Your explanation (where this output came from):** `________________________________________________`---**4. Statement:**```javamyList.add(2, "w");```- **ArrayList content:** `________________________________________________`- **Your explanation (where this output came from):** `________________________________________________`---**5. Statement:**```javamyList.set(0, "b");```- **ArrayList content:** `________________________________________________`- **Your explanation (where this output came from):** `________________________________________________`---This exercise demonstrates how to manipulate the `ArrayList` using different methods such as `add()` and `set()`. The sequence of operations changes the contents of the list dynamically. Each method is designed to either insert, update, or manipulate the elements within the `ArrayList`.

add method will add the element at the end of list until and unless index is specified set method will update the value present in that particular index Given initially we start with an empty list do let's see how it changes throughout the executionmyList.add("z") will add z to list at the end and thus contents will be ['z'] myList.add(0,"a") will add a at index 0 to list and thus contents will be ['a', 'z'] myList.add("t") will add t at end of the list and thus contents will be ['t', 'a', 'z'] myList.add(2,"w") will add a at index 2 to list and thus contents will be ['t', 'a', 'w', 'z'] myList.set(0,"b") will set the element to b at index 0 to list and thus contents will be ['b', 'a', 'w', 'z'] myList.add(0,"b") will add b at index 0 to list and thus contents will be ['b', 'b', 'a', 'w', 'z'] myList.add(1,"y") will add y at index 1 to list and thus contents will be ['b', 'y', 'b', 'a', 'w', 'z'] my list.remove(3) will remove the element at index 3 and thus contents will be ['b', 'y', 'b', 'w', 'z']

Engineering

Computer Science

ArrayList content:_ Your explanation (where this output came from): nyList.add(0, "a"); ArrayList content: Your explanation (where this output came from): nyList.add("t"); ArrayList content: Your explanation (where this output came from): myList.add(2,"w"); ArrayList content: Your explanation (where this output came from): myList.set(0,"b"); ArrayList content:

ArrayList content:_ Your explanation (where this output came from): nyList.add(0, "a"); ArrayList content: Your explanation (where this output came from): nyList.add("t"); ArrayList content: Your explanation (where this output came from): myList.add(2,"w"); ArrayList content: Your explanation (where this output came from): myList.set(0,"b"); ArrayList content:

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Question

```plaintext
myList.set(0, "b");
ArrayList content: ________________________________________________________
Your explanation (where this output came from): ___________________________

__________________________________________________________________________

myList.add(1, "y");
ArrayList content: ________________________________________________________
Your explanation (where this output came from): ___________________________

__________________________________________________________________________

myList.remove(3);
ArrayList content: ________________________________________________________
Your explanation (where this output came from): ___________________________

__________________________________________________________________________
```

The image shows a series of code operations involving an ArrayList in Java. Each operation is followed by a section to describe the expected content of the list after the operation and an area to explain why the content appears as it does. These exercises are typical in programming education to help students understand how list operations modify data within a list structure.

**Educational Content on ArrayList Operations**

**Instruction:**
Execute the following statements over an initially empty ArrayList named `myList`, one after another (cascade). After executing each statement, explain what was changed (what did it do?).

---

**1. Statement:**
```java
myList.add("z");
```
- **ArrayList content:**
`________________________________________________`
- **Your explanation (where this output came from):**
`________________________________________________`

---

**2. Statement:**
```java
myList.add(0, "a");
```
- **ArrayList content:**
`________________________________________________`
- **Your explanation (where this output came from):**
`________________________________________________`

---

**3. Statement:**
```java
myList.add("t");
```
- **ArrayList content:**
`________________________________________________`
- **Your explanation (where this output came from):**
`________________________________________________`

---

**4. Statement:**
```java
myList.add(2, "w");
```
- **ArrayList content:**
`________________________________________________`
- **Your explanation (where this output came from):**
`________________________________________________`

---

**5. Statement:**
```java
myList.set(0, "b");
```
- **ArrayList content:**
`________________________________________________`
- **Your explanation (where this output came from):**
`________________________________________________`

---

This exercise demonstrates how to manipulate the `ArrayList` using different methods such as `add()` and `set()`. The sequence of operations changes the contents of the list dynamically. Each method is designed to either insert, update, or manipulate the elements within the `ArrayList`.

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