What are good reasons to prohibit inheritance in Java, for example by using final classes or classes using a single, private parameterless constructor? What are good reasons of making...
In Java, it is perfectly legal to define final arguments in interface methods and do not obey that in the implementing class, e.g.: public interface Foo { public void...
I have a simple question about strings in Java. The following segment of simple code just concatenates two strings and then compares them with ==. String str1="str"; String str2="ing";...
Edited: I need to change the values of several variables as they run several times thorugh a timer. I need to keep updating the values with every iteration through...
In Java, static final variables are constants and the convention is that they should be in upper-case. However, I have seen that most people declare loggers in lower-case which...
In Java, what’s the difference between: private final static int NUMBER = 10; and private final int NUMBER = 10; Both are private and final, the difference is the...
I’m playing with lambdas in Java 8 and I came across warning local variables referenced from a lambda expression must be final or effectively final. I know that when...
What is the difference between const and final keyword in Dart? 15 Answers 15
In Java we see lots of places where the final keyword can be used but its use is uncommon. For example: String str = "abc"; System.out.println(str); In the above...
I can’t understand where the final keyword is really handy when it is used on method parameters. If we exclude the usage of anonymous classes, readability and intent declaration...