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Final keyword
Final Keyword: The final keyword is used when declaring a variable or method at the end of a statement. This keyword prevents the variable or method from...
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Final Keyword: The final keyword is used when declaring a variable or method at the end of a statement. This keyword prevents the variable or method from...
Final Keyword:
The final keyword is used when declaring a variable or method at the end of a statement. This keyword prevents the variable or method from being reassigned a new value after it has been initialized.
Example:
java
final int age = 30; // Age is initialized at 30 and cannot be changed
System.out.println("My age is: " + age);
In this example, the final keyword is used with the age variable. The variable is initialized with the value 30 and cannot be changed to a different value after initialization.
Benefits of Using Final:
Prevents variable reassignment, promoting code stability and reducing the risk of errors.
Enforces the initial value of a variable, ensuring its intended purpose is clear.
Simplifies variable maintenance and reduces the need for explicit initialization.
Additional Notes:
The final keyword is only applicable to variables. It does not apply to methods or constructors.
It can be used multiple times within a single statement, separating each variable with a comma.
The final keyword is not a restriction on the value of the variable. It can be initialized with any valid value