JAVA need help with question 2 ### BankAccount Class Overview1. **Description:** The `BankAccount` class models changes to the balance of a person's savings account.2. **Class Definition:** ```java public class BankAccount { public BankAccount(double initBal) {} public double getBalance() {} public String getName() {} public void deposit(double amount) {} public void withdraw(double amount) {} public void transferTo(BankAccount otherAcct, double amt) {} public boolean equals(Object other) {} private String acctName; private double balance; } ```3. **Methods and Attributes:** - **Constructor:** `BankAccount(double initBal)` initializes the account with a starting balance. - **Methods:** - `getBalance()`: Returns the current balance of the account. - `getName()`: Returns the name associated with the account. - `deposit(double amount)`: Adds a specified amount to the account's balance. - `withdraw(double amount)`: Deducts a specified amount from the account's balance. - `transferTo(BankAccount otherAcct, double amt)`: Transfers a specified amount to another `BankAccount`. - `equals(Object other)`: Compares this account with another object for equality. - **Attributes:** - `private String acctName`: The name of the account holder. - `private double balance`: The current balance of the account.### Task**a) Implement the `transferTo(...)` Method:**```java{ balance = balance + amt; otherAcct.withdraw(amt);}```**Explanation:** The `transferTo` method increases the balance of the current account by the `amt` and deducts the same `amt` from the `otherAcct`. This allows for transferring funds between accounts. **Exercise 2: Finding and Correcting Syntax Errors in Java Programs**Each of the following Java programs contains exactly one syntax error. Find the error and correct it.**a)**```javapublic static void main(String[] args) { BankAccount a = new BankAccount(500); BankAccount b = new BankAccount(); double c = a.balance + b.balance; System.out.println("The combined balance is $" + c);}```**Explanation and Correction:**- **Error:** The `balance` field is likely private and cannot be accessed directly. - **Correction:** Use a method like `getBalance()` to access the balance.```javadouble c = a.getBalance() + b.getBalance();```**b)**```javapublic static void main(String[] args) { BankAccount a = new BankAccount(500); a += 300; System.out.println("The new balance is $" + a.getBalance());}```**Explanation and Correction:**- **Error:** The operator `+=` cannot be used directly on object instance `a`; it should operate on a primitive or use a method.- **Correction:** Use a deposit method like `a.deposit(300);`.```javaa.deposit(300);```**c)**```javapublic static void main(String[] args) { BankAccount a = new BankAccount(100); a.deposit(500); a.BankAccount(); System.out.println(a.getName() + " now has a 0 balance");}```**Explanation and Correction:**- **Error:** `a.BankAccount();` is not a valid method call; syntax for constructor is incorrect.- **Correction:** Remove the incorrect line. Balances should update without calling constructors again.```java// Remove: a.BankAccount();```These corrections help ensure the code complies with standard syntax practices and logic for operations on objects.

Task :- Find out the errors in given programs.

2. Each of the following programs contains exactly one syntax error. Find the error and correct it. a) public static void main(String[] args) { BankAsseunt a = new BankAsSeunt (500); Bankacseunt b = new Bankacseuet () ; double c Sxsten.eut intin( "The combined balance is $" + c); b) public static void main(String[] args) Bankaeseunt a = new BaakāEseurt (500); a += 300; { Sxsten.eut intln( "The new balance is $" + augetkalance () ) ; c) public static void main(String[] args) BankAeseuet a Fnderesit (500); GuBaakAEseunt () ; Sxstem.eutuRKintle (argetNane () + { = new BankaEGRUrt (100); now has a 0 balance");

2. Each of the following programs contains exactly one syntax error. Find the error and correct it. a) public static void main(String[] args) { BankAsseunt a = new BankAsSeunt (500); Bankacseunt b = new Bankacseuet () ; double c Sxsten.eut intin( "The combined balance is $" + c); b) public static void main(String[] args) Bankaeseunt a = new BaakāEseurt (500); a += 300; { Sxsten.eut intln( "The new balance is $" + augetkalance () ) ; c) public static void main(String[] args) BankAeseuet a Fnderesit (500); GuBaakAEseunt () ; Sxstem.eutuRKintle (argetNane () + { = new BankaEGRUrt (100); now has a 0 balance");

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

JAVA

need help with question 2

### BankAccount Class Overview

1. **Description:**
The `BankAccount` class models changes to the balance of a person's savings account.

2. **Class Definition:**

```java
public class BankAccount {
public BankAccount(double initBal) {}
public double getBalance() {}
public String getName() {}
public void deposit(double amount) {}
public void withdraw(double amount) {}
public void transferTo(BankAccount otherAcct, double amt) {}
public boolean equals(Object other) {}

private String acctName;
private double balance;
}
```

3. **Methods and Attributes:**

- **Constructor:** `BankAccount(double initBal)` initializes the account with a starting balance.
- **Methods:**
- `getBalance()`: Returns the current balance of the account.
- `getName()`: Returns the name associated with the account.
- `deposit(double amount)`: Adds a specified amount to the account's balance.
- `withdraw(double amount)`: Deducts a specified amount from the account's balance.
- `transferTo(BankAccount otherAcct, double amt)`: Transfers a specified amount to another `BankAccount`.
- `equals(Object other)`: Compares this account with another object for equality.
- **Attributes:**
- `private String acctName`: The name of the account holder.
- `private double balance`: The current balance of the account.

### Task

**a) Implement the `transferTo(...)` Method:**

```java
{
balance = balance + amt;
otherAcct.withdraw(amt);
}
```

**Explanation:** The `transferTo` method increases the balance of the current account by the `amt` and deducts the same `amt` from the `otherAcct`. This allows for transferring funds between accounts.

**Exercise 2: Finding and Correcting Syntax Errors in Java Programs**

Each of the following Java programs contains exactly one syntax error. Find the error and correct it.

**a)**
```java
public static void main(String[] args) {
BankAccount a = new BankAccount(500);
BankAccount b = new BankAccount();
double c = a.balance + b.balance;
System.out.println("The combined balance is $" + c);
}
```

**Explanation and Correction:**

- **Error:** The `balance` field is likely private and cannot be accessed directly.
- **Correction:** Use a method like `getBalance()` to access the balance.

```java
double c = a.getBalance() + b.getBalance();
```

**b)**
```java
public static void main(String[] args) {
BankAccount a = new BankAccount(500);
a += 300;
System.out.println("The new balance is $" + a.getBalance());
}
```

**Explanation and Correction:**

- **Error:** The operator `+=` cannot be used directly on object instance `a`; it should operate on a primitive or use a method.
- **Correction:** Use a deposit method like `a.deposit(300);`.

```java
a.deposit(300);
```

**c)**
```java
public static void main(String[] args) {
BankAccount a = new BankAccount(100);
a.deposit(500);
a.BankAccount();
System.out.println(a.getName() + " now has a 0 balance");
}
```

**Explanation and Correction:**

- **Error:** `a.BankAccount();` is not a valid method call; syntax for constructor is incorrect.
- **Correction:** Remove the incorrect line. Balances should update without calling constructors again.

```java
// Remove: a.BankAccount();
```

These corrections help ensure the code complies with standard syntax practices and logic for operations on objects.

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