Which members of base class Players are inherited by SoccerPlayers? public class Players { }; public void setName (String newName) {-} public void setAge(int newAge) {-} public void printDetails() {-} private String playerName; private int playerAge; public class SoccerPlayers extends Players { public void setDetails (String newName) {... public String getLeague() {-} private String teamName; }; only playerName and playerAge setName, setAge, printDetails, playerName, and playerAge setDetails, getLeague, playerName, playerAge, and teamName only setName, setAge, printDetails

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
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### Inheritance in Object-Oriented Programming

**Question:**
Which members of the base class `Players` are inherited by `SoccerPlayers`?

**Code Snippet:**

```java
public class Players {
    public void setName(String newName) { … }
    public void setAge(int newAge) { … }
    public void printDetails() { … }
    private String playerName;
    private int playerAge;
};

public class SoccerPlayers extends Players {
    public void setDetails(String newName) { … }
    public String getLeague() { … }
    private String teamName;
};
```

**Options:**

- a) only `playerName` and `playerAge`
- b) `setName`, `setAge`, `printDetails`, `playerName`, and `playerAge`
- c) `setDetails`, `getLeague`, `playerName`, `playerAge`, and `teamName`
- d) only `setName`, `setAge`, `printDetails`

**Explanation:**

In object-oriented programming, specifically in Java, when a class extends another class, it inherits all the public and protected members from the parent class, but not the private members.

**Analysis of the Code:**

- The `Players` class has three public methods: `setName()`, `setAge()`, and `printDetails()`. 
- It also has two private fields: `playerName` and `playerAge`.
- The `SoccerPlayers` class extends `Players`, meaning it inherits all public methods from `Players` but does not inherit the private fields directly.
- Therefore, `SoccerPlayers` inherits the methods `setName()`, `setAge()`, and `printDetails()` but not the private fields `playerName` and `playerAge`.

**Correct Answer:**

- d) only `setName`, `setAge`, `printDetails`
Transcribed Image Text:### Inheritance in Object-Oriented Programming **Question:** Which members of the base class `Players` are inherited by `SoccerPlayers`? **Code Snippet:** ```java public class Players { public void setName(String newName) { … } public void setAge(int newAge) { … } public void printDetails() { … } private String playerName; private int playerAge; }; public class SoccerPlayers extends Players { public void setDetails(String newName) { … } public String getLeague() { … } private String teamName; }; ``` **Options:** - a) only `playerName` and `playerAge` - b) `setName`, `setAge`, `printDetails`, `playerName`, and `playerAge` - c) `setDetails`, `getLeague`, `playerName`, `playerAge`, and `teamName` - d) only `setName`, `setAge`, `printDetails` **Explanation:** In object-oriented programming, specifically in Java, when a class extends another class, it inherits all the public and protected members from the parent class, but not the private members. **Analysis of the Code:** - The `Players` class has three public methods: `setName()`, `setAge()`, and `printDetails()`. - It also has two private fields: `playerName` and `playerAge`. - The `SoccerPlayers` class extends `Players`, meaning it inherits all public methods from `Players` but does not inherit the private fields directly. - Therefore, `SoccerPlayers` inherits the methods `setName()`, `setAge()`, and `printDetails()` but not the private fields `playerName` and `playerAge`. **Correct Answer:** - d) only `setName`, `setAge`, `printDetails`
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