Creating a Java class using the New Java Class wizard
To create a Java class using the New Java Class wizard:
| Select the itso.rad75.bank.model package and click the Add Java Class icon in the action box.
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| In the New Java Class dialog, enter the following data and click Finish.
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Package: itso.rad75.bank.model (click Browse to select the package)
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Name: Transaction
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Modifiers: Select public (default) and abstract.
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Superclass: java.lang.Object (default). You can change the superclass by clicking Browse in the Superclass Selection dialog (Figure | 18), in the Choose a type field type the name of the superclass and click OK. All matching types are listed while writing.
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Figure 8-18 Superclass Selection dialog
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Interfaces: java.io.Serializable, click Add and type the interface name in the Choose interfaces field. All matching types are listed. Select the required interface and click Add. If you have added all required interfaces, click OK to leave the dialog (Figure | 19).
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Figure 8-19 Implemented Interfaces Selection dialog
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Which method stubs would you like to create:
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public static void main(String[] args): clear (default)-Adds an empty main method to the class and makes the class an executable one. In the example, only the class BankClient must be executable.
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Inherited abstract methods: clear-Adds to the new class stubs of any abstract methods from superclasses or methods of interfaces that have to be implemented. In the example, it is useful for the classes ITSOBank, Credit, and Debit.
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Generate comments: clear (default)
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Click Finish to create the Java class (Figure | 20). Notice that a line appears between the package and the Bank interface.
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Figure 8-20 New Java Class dialog
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Note: You can add a class to the class diagram using drag and drop, or select Visualize Æ Add to Current Diagram.
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ITSOBank example-Classes
Repeat the foregoing steps to create the following Java classes, which are described in Interfaces and classes structure:
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| ITSOBank into package itso.rad75.bank.impl
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| ITSOBankException into package itso.rad75.bank.exception
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| InvalidCustomerException into package itso.rad75.bank.exception
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| InvalidAccountException into package itso.rad75.bank.exception
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| InvalidTransactionException into package itso.rad75.bank.exception
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