Question Description

RangeFilterTester.java

import java.util.ArrayList;

class RangeFilterTester
{
public static void main( String[] args)
{
ArrayList accounts = new ArrayList();
accounts.add(new BankAccount(1398723,900));
accounts.add(new BankAccount(1432561,9900));
accounts.add(new BankAccount(1584624,52));
accounts.add(new BankAccount(1856210,2300));
accounts.add(new BankAccount(1745382,213));
accounts.add(new BankAccount(1965432,603));
accounts.add(new BankAccount(1234567,12));

for (int i = 0; i < accounts.size(); i++)
{
System.out.println(accounts.get(i));
}
System.out.println("After Filtering:");

for (int i = 0; i < accounts.size(); i++)
{
if (accounts.get(i).inRange(100, 1000))
System.out.println(accounts.get(i));
}

System.out.println("Expected:Account Number: 1398723 Balance: 900.0");
System.out.println("Account Number: 1745382 Balance: 213.0");
System.out.println("Account Number: 1965432 Balance: 603.0");
}
}

BankAccount.java

public class BankAccount implements Filter
{
private long accountNumber;
private double balance;
private static int numberOfAccounts = 0;

public BankAccount()
{
accountNumber = 0;
balance = 0;
numberOfAccounts++;
}

public BankAccount(long accountNumber)
{
this.accountNumber = accountNumber;
balance = 0;
numberOfAccounts++;
}

public BankAccount(long accountNumber, double initialBalance)
{
this.accountNumber = accountNumber;
balance = initialBalance;
numberOfAccounts++;
}
public BankAccount(int accountNumber, double initialBalance)
{
this.accountNumber = accountNumber;
balance = initialBalance;
numberOfAccounts++;
}

public static int getNumberOfAccounts()
{
return numberOfAccounts;
}

public double getBalance()
{
return balance;
}

public void deposit(double amount)
{
this.balance += amount;
}

public void withdraw(double amount)
{
this.balance -= amount;
}

public void transfer(double amount, BankAccount targetAccount)
{
this.withdraw(amount);
targetAccount.deposit(amount);
}

public String toString()
{
return "Account Number: " + accountNumber + " Balance: " + balance;
}

//-----------Start below here. To do: approximate lines of code = 4
// Implement the necessary method such that class BankAccount implements the Filter interface
// check the balance instance variable of this bank account object to see if it is in range specified by
// the parameters. See Filter.java






//-----------------End here. Please do not remove this comment. Reminder: no changes outside the todo regions.
}

Filter.java

// interface Filter filters out objects based on whether an (double) attribute of the object
// is within a specified range
public interface Filter
{
// method inRange returns true if the attribute is >= low and

Transcribed Image Text:

See the following files: * RangeFilter Tester.java *BankAccount.java (has todo) *Filter.java Approximate total lines of code required: 4 See the following files: * RangeFilter Tester.java *BankAccount.java (has todo) *Filter.java Approximate total lines of code required: 4

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