被final修饰的方法称为常量方法，该方法可以被重载，也可以被子类继承，但却不能被重写。当一个方法的功能已经可以满足当前要求，不需要进行扩展，我们就不用任何子类来重写该方法，防止该方法的内容被修改。比如Object类中，就有一个final修饰的getClass()方法，Object的任何子类都不能重写这个
In Java, the "final" keyword is used to indicate that a variable, method, or class can only be assigned a value once and cannot be changed thereafter. The final keyword is used to limit access and modification by the user. It can be used in any context such as final variable, final ...
In this tutorial we will learn about final class in Java programming language. In the previous tutorials we learned aboutfinal variablesandfinal methods. So, we know that if we want to create a constant then we can declare afinal variable. And if we want to prevent method overriding then we...
The Object class does this—a number of its methods are final. You might wish to make a method final if it has an implementation that should not be changed and it is critical to the consistent state of the object. For example, you might want to make the getFirstPlayer method in this ...
at java.util.concurrent.FutureTask.run(FutureTask.java:138)at java.util.concurrent.ThreadPoolExecutor$Worker.runTask(ThreadPoolExecutor.java:886)at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:908)at java.lang.Thread.run(Thread.java:662)Caused by:java.lang.ClassNotFound...
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final String testInput = "A test input"; final String mockedResult = "Mocked static echo result - " + testInput; Mockito.when(AStaticClass.echoString(testInput)).thenReturn(mockedResult); // Assert the mocked result is returned from method call Assert.assertEquals(AStaticClass.echoString(test...
*When pool is empty*TIDYING->TERMINATED*When theterminated()hook method has completed**Threads waitinginawaitTermination()willreturnwhen the*state reachesTERMINATED.**Detecting the transitionfromSHUTDOWNtoTIDYINGis less*straightforward than you'd like because the queue may become*empty after non-empty ...
In this example,MAX_VALUEis afinalvariable. Attempting to reassign it will result in a compilation error. Example 2:finalMethod classParent{publicfinalvoiddisplay(){System.out.println("This is a final method.");}}classChildextendsParent{// public void display() { // This will cause a compil...
public class FinalTypeDemo { public static void main(String[] args) { //final修饰基本类型的变量,变量值不可变 final int x=10; //The final local variable x cannot be assigned. It must be blank and not using a compound assignment