Java Final Variable We should initialize a final variable in Java, otherwise, a compiler can throw a compile-time error.
In other words, we lose extensibility, one of the benefits of object-oriented programming. Lets see how we can overcome this problem.
Methods declared as final cannot be overridden. For static final fields, this means that we can initialize them: upon declaration as shown in the above example in the static initializer block For instance final fields, this means that we can initialize them: upon declaration in the instance initializer block in the constructor Otherwise, the compiler will give us an error.
Several classes in Java are final e. This method checks if a thread is alive. Example package com. Furthermore, if you have any query regarding Final Keyword in Java, feel free to ask in the comment box.
Java Final Class A class which is declared using the final keyword is a final class. But its isAlive methods is final.