Java™ How To Program (Early Objects), Tenth Edition

3.4.1 Declaring an Account Constructor for Custom Object Initialization

When you declare a class, you can provide your own constructor to specify custom initialization for objects of your class. For example, you might want to specify a name for an Account object when the object is created, as in line 10 of Fig. 3.6:

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Account account1 = new Account("Jane Green");

In this case, the String argument "Jane Green" is passed to the Account object’s constructor and used to initialize the name instance variable. The preceding statement requires that the class provide a constructor that takes only a String parameter. Figure 3.5 contains a modified Account class with such a constructor.

Account Constructor Declaration