Homework Soursepublic class BankAccount private double balance public Bank
public class BankAccount
{
private double balance;
public BankAccount()
{
balance = 0;
}
public BankAccount(double initialBalance)
{
balance = initialBalance;
}
public void deposit(double amount)
{
balance = balance + amount;
}
public void withdraw(double amount)
{
balance = balance - amount;
}
public double getBalance()
{
return balance;
}
}
Look at the code above, and identify the following:
Constructor
Field
Method
Primitive Type
Instance Variable
The class above is not a complete Java program that could execute. What would you do to make it execute? Change the program, or add a source code file, to make it into a Java program that executes.
Suggest two other improvements you would make to this code.
Solution
Hi, Please let me know in case of any issue.
public class BankAccount
{
private double balance;
public BankAccount()
{
balance = 0;
}
public BankAccount(double initialBalance)
{
balance = initialBalance;
}
public void deposit(double amount)
{
balance = balance + amount;
}
public void withdraw(double amount)
{
balance = balance - amount;
}
public double getBalance()
{
return balance;
}
}
/*
Constructor :
1. Default Constructor: BankAccount()
2. Parameterized Constructor: BankAccount(double initialBalance)
Field
double balance
Method
1. void deposit(double amount)
2. void withdraw(double amount)
3. double getBalance()
Primitive Type
double
Instance Variable
balance
*/
public class BankAccoutDriver {
public static void main(String[] args) {
// creating an Object of BankAccout
BankAccount account = new BankAccount(342.12);
System.out.println(\"Balance: \"+account.getBalance());
account.deposit(43.23);
System.out.println(\"Balance: \"+account.getBalance());
}
}
/*
Sampel run:
Balance: 342.12
Balance: 385.35
*/
Improvement:
1. in withdraw mwthod: we should not allow user to withdraw if withdrawing amount is greater than balance
2. We should have a field called: Account Number in BankAccount class
