Initialize final variable before constructor in Java

Question

Is there a solution to use a final variable in a Java constructor? The problem is that if I initialize a final field like:

private final String name = \"a na         


        

Answer 1

We're getting away from the question.

Yes, you can use a private final variable. For example:

public class Account {
    private final String accountNumber;
    private final String routingNumber;

    public Account(String accountNumber, String routingNumber) {
        this.accountNumber = accountNumber;
        this.routingNumber = routingNumber;
    }
}

What this means is that the Account class has a dependency on the two Strings, account and routing numbers. The values of these class attributes MUST be set when the Account class is constructed, and these number cannot be changed without creating a new class.

The 'final' modifier here makes the attributes immutable.