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slgobinathslgobinath
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OOP: Polymorphism
1 parent d96bc07 commit 1d436db

8 files changed

Lines changed: 81 additions & 1 deletion

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objectorientedprogramming/polymorphism/BankAccount.java renamed to objectorientedprogramming/polymorphism/BankAccountDemo/v1/BankAccount.java

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@@ -6,7 +6,7 @@
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*/
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public class BankAccount {
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private String name;
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private double balance;
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protected double balance;
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public String getName() {
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return this.name;

objectorientedprogramming/polymorphism/BankDemo.java renamed to objectorientedprogramming/polymorphism/BankAccountDemo/v1/BankDemo.java

File renamed without changes.

objectorientedprogramming/polymorphism/CurrentAccount.java renamed to objectorientedprogramming/polymorphism/BankAccountDemo/v1/CurrentAccount.java

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objectorientedprogramming/polymorphism/SavingsAccount.java renamed to objectorientedprogramming/polymorphism/BankAccountDemo/v1/SavingsAccount.java

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‎objectorientedprogramming/polymorphism/BankAccountDemo/v2/BankAccount.java‎

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/**
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* Sample class BankAccount which is used as the super class of CurrentAcoount and SavingsAccount.
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*
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* @version 1.0
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* @author L.Gobinath
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*/
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public class BankAccount {
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private String name;
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protected double balance;
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public String getName() {
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return this.name;
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}
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public void setName(String name) {
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this.name = name;
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}
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public void deposite(double amount) {
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this.balance += amount;
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}
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public boolean withdraw(double amount) {
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if (balance > amount) {
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balance -= amount;
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return true;
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} else {
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return false;
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}
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}
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}

‎objectorientedprogramming/polymorphism/BankAccountDemo/v2/BankDemo.java‎

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/**
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* Testing class for BankAccounts.
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*
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* @version 1.0
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* @author L.Gobinath
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*/
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public class BankDemo {
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public static void main(String[] args) {
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CurrentAccount c = new CurrentAccount();
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SavingsAccount s = new SavingsAccount();
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c.deposite(500.00);
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s.deposite(500.00);
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doWithdrawal(c); // Withdraw succeed.
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doWithdrawal(s); // Withdraw failed.
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}
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public static void doWithdrawal(BankAccount acc) {
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boolean result = acc.withdraw(1000.00);
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if (result) {
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System.out.println("Withdraw succeed.");
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} else {
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System.out.println("Withdraw failed.");
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}
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}
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}

‎objectorientedprogramming/polymorphism/BankAccountDemo/v2/CurrentAccount.java‎

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/**
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* CurrentAccount allows to have negative balance.
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*
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* @version 2.0
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* @author L.Gobinath
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*/
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public class CurrentAccount extends BankAccount {
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/**
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* Overriding method.
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*/
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public boolean withdraw(double amount) {
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balance -= amount;
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return true;
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}
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}

‎objectorientedprogramming/polymorphism/BankAccountDemo/v2/SavingsAccount.java‎

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/**
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* SavingsAccount does not have any significant differences.
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*
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* @version 1.0
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* @author L.Gobinath
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*/
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public class SavingsAccount extends BankAccount {
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}

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