JavaJava Final Class Video Player is loading. Current Time0:00 / Duration-:- Loaded:0% This tutorial goes through the topic of thefinalclass with an example. Thefinalis a keyword in Java that can be used in different contexts with variables, methods, and classes. ...
In the above-given example, we can see how a final class can be used effectively. The output of the above-given program is given below. Output: Example #3 In this example, the final class inherits the other class, i.e., Student, but no other classes can extend the Info class because...
$ javac Example.java Example.java:10: error: cannot inherit from final Hello class Awesome extends Hello { ^ 1 error Example #2 In the following example we have a final classBoxthat can't be inherited. We also have theGiftBoxclass that uses the method of theBoxclass. ...
Simply the compiler will throw an error because we already know a final class in java cannot be inherited or extended. Let’s now see this with the help of an example given below to make a good understanding of the concept – Code Implementation of Final Class in Java Java importjava.util...
Final Keyword in Java Examples Certainly, let’s explore more examples to illustrate the usage of the final keyword in different contexts within Java. Example 1: Final Variables public class Circle { final double PI = 3.14159; double radius; Circle(double radius) { this.radius = radius;...
final class FinalClass {// ...}class Example {final int constantValue = 42;final void finalMethod() {// ...} finally: finally是一个关键字,用于结构化异常处理中的try-catch-finally语句块。 无论是否发生异常,finally语句块中的代码都会被执行,通常用于释放资源、关闭文件等操作。
Example In the following Java program, we have a final class with name SuperClass and we are trying to inherent it from another class (SubClass). final class SuperClass{ public void display() { System.out.println("This is a method of the superclass"); } } public class SubClass extends...
can be shared. For example: * * ...其他略... * */ public final class String ...
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...
classSonconstructor(name:String,age:Int):Father(name,age){override funaction(){println("Son")}} 3 . 子类没有主构造函数 :如果没有主构造函数 , 那么子类必须有次构造函数 , 子类需要在次构造函数中定义需要的变量 , 其中的参数 , 可以直接传递给后面 super ( ) 委托调用的主构造函数 ; ...