In this homework, we will use Object‐Oriented Programming and write a simple Java program that consists of multiple classes (files) interacting with each other. Your whole program should contain two java files: Hw8.java, Account.java. Suppose you are helping a local branch of an asset management firm to develop a program to track its customers and their accounts. Your program should make it easy to create an account and display account information. Please do the following: Part 1: Account class Create a class called Account and save it in Account.java. The class has the following (private) instance variables:  An integer variable for account number;  A double variable for account balance; The class has the following (public) instance methods:  Constructor Method 1, with no argument: o Simply set account number to 1001, and set account balance to 0;  Constructor Method 2, with two arguments: one for account number; one for account balance o Set the account number and the account balance as equal to the argument inputs;  A method to set the account number;  A method to set the account balance;  A method to retrieve the account number;  A method to retrieve the account balance;  A method to print account information: o Print account number and account balance in one line, in a properly aligned format. Part 2: Program Entry Point: Main Method Create a class called Hw8 that only contains the main method as the entry point of your whole Java program. Save the class in Hw8.java. In your main method, do the following:  Create 3 Account objects as follows: o Use Constructor Method 2 to create an Account object: Account Number 1001, Balance 1000.0 o Use Constructor Method 2 to create an Account object: Account Number 1002, Balance 50000.0 o Use Constructor Method 1 to create an Account object. Then call the appropriate methods to set the account number to 1003 and the balance to 3000.0  Let each Account object display its own account information. Think: How to use an array to do the same task? Your program should have the following output: PHOTO ATTACHED Note:  Save the two .java files under the same folder  If you compile in the command‐line console, you only need to compile Hw8.java, which will automatically triggers the compilation of Account.java.  Run your program by entering java Hw8

In this homework, we will use Object‐Oriented Programming and write a simple Java program that consists of multiple classes (files) interacting with each other. Your whole program should contain two java files: Hw8.java, Account.java. Suppose you are helping a local branch of an asset management firm to develop a program to track its customers and their accounts. Your program should make it easy to create an account and display account information. Please do the following: Part 1: Account class Create a class called Account and save it in Account.java. The class has the following (private) instance variables:  An integer variable for account number;  A double variable for account balance; The class has the following (public) instance methods:  Constructor Method 1, with no argument: o Simply set account number to 1001, and set account balance to 0;  Constructor Method 2, with two arguments: one for account number; one for account balance o Set the account number and the account balance as equal to the argument inputs;  A method to set the account number;  A method to set the account balance;  A method to retrieve the account number;  A method to retrieve the account balance;  A method to print account information: o Print account number and account balance in one line, in a properly aligned format. Part 2: Program Entry Point: Main Method Create a class called Hw8 that only contains the main method as the entry point of your whole Java program. Save the class in Hw8.java. In your main method, do the following:  Create 3 Account objects as follows: o Use Constructor Method 2 to create an Account object: Account Number 1001, Balance 1000.0 o Use Constructor Method 2 to create an Account object: Account Number 1002, Balance 50000.0 o Use Constructor Method 1 to create an Account object. Then call the appropriate methods to set the account number to 1003 and the balance to 3000.0  Let each Account object display its own account information. Think: How to use an array to do the same task? Your program should have the following output: PHOTO ATTACHED Note:  Save the two .java files under the same folder  If you compile in the command‐line console, you only need to compile Hw8.java, which will automatically triggers the compilation of Account.java.  Run your program by entering java Hw8

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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In this homework, we will use Object‐Oriented Programming and write a simple Java program that

consists of multiple classes (files) interacting with each other. Your whole program should contain two

java files: Hw8.java, Account.java.

Suppose you are helping a local branch of an asset management firm to develop a program to track its

customers and their accounts. Your program should make it easy to create an account and display

account information.

Please do the following:

Part 1: Account class

Create a class called Account and save it in Account.java.

The class has the following (private) instance variables:

 An integer variable for account number;

 A double variable for account balance;

The class has the following (public) instance methods:

 Constructor Method 1, with no argument:

o Simply set account number to 1001, and set account balance to 0;

 Constructor Method 2, with two arguments: one for account number; one for account balance

o Set the account number and the account balance as equal to the argument inputs;

 A method to set the account number;

 A method to set the account balance;

 A method to retrieve the account number;

 A method to retrieve the account balance;

 A method to print account information:

o Print account number and account balance in one line, in a properly aligned format.

Part 2: Program Entry Point: Main Method

Create a class called Hw8 that only contains the main method as the entry point of your whole Java

program. Save the class in Hw8.java.

In your main method, do the following:

 Create 3 Account objects as follows:

o Use Constructor Method 2 to create an Account object: Account Number 1001, Balance

1000.0

o Use Constructor Method 2 to create an Account object: Account Number 1002, Balance

50000.0

o Use Constructor Method 1 to create an Account object. Then call the appropriate

methods to set the account number to 1003 and the balance to 3000.0

 Let each Account object display its own account information.

Think: How to use an array to do the same task?

Your program should have the following output: PHOTO ATTACHED

Note:

 Save the two .java files under the same folder

 If you compile in the command‐line console, you only need to compile Hw8.java, which will

automatically triggers the compilation of Account.java.

 Run your program by entering java Hw8

C:\test>javac Hw8.java
C:\test>java Hw8
1001
1000.00
1002
50000.00
1003
3000.00
C:\test>

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