"D:\Program Files\Java\jdk-13.0.2\bin\java.exe""-javaagent:D:\Program Files\JetBrains\IntelliJ IDEA 2019.2\lib\idea_rt.jar=56903:D:\Program Files\JetBrains\IntelliJ IDEA 2019.2\bin"-Dfile.encoding=UTF-8-classpath C:\OneDrive\java\src\out\production\OneDrive day09.demo01.Demo01Extends 方法...
In Java, it is possible to inherit attributes and methods from one class to another. We group the "inheritance concept" into two categories: subclass(child) - the class that inherits from another class superclass(parent) - the class being inherited from ...
在Subclass中,简单名称printMethod()是指在Subclass中声明的一个,它覆盖了Superclass中的一个。 因此,要引用从Superclassinheritance的printMethod(),Subclass必须使用限定名称,如图所示使用super。 编译和执行子类打印以下内容: 超级印刷。 在子类子类构造函数中打印 以下示例说明如何使用super关键字来调用超类的构造函数。
Core Java Web Page http://horstmann.com/corejava.html [ inheritance ] packagev1ch05.inheritance;importjava.time.LocalDate;publicclassEmployee {privateString name;privatedoublesalary;privateLocalDate hireDay;publicEmployee(String name,doublesalary,intyear,intmonth,intday) {this.name =name;this.salary...
System.out.println("in subclass.dosomething()"); System.out.println("super.x="+super.x+"sub.x"+x); } } public class Inheritance { public static void main(String args[]) { SubClass subC=new SubClass(); subC.doSomething(); }
都可以归结到：static binding vs dynamic binding.参照Static Vs. Dynamic Binding in Java,Here are ...
Understanding Keyword Super: Java Tutorial Object-oriented languages consist of three integral features: inheritance, polymorphism and data encapsulation. Inheritance refers to the process of inheriting characteristics of parent object in the child object without having to rewrite the code in the child ...
In Java, the super keyword is a reference variable that is used to refer to the immediate parent class object. It is particularly useful in the context of inheritance, where a subclass inherits properties and behaviors from a superclass. The super keyword allows a subclass to access members of...
To understand the super keyword, you should have a basic understanding of Inheritance and Polymorphism.Related PagesRead more about inheritance (subclasses and superclasses) in our Java Inheritance Tutorial. Read more about polymorphism in our Java Polymorphism Tutorial....
System.out.println("Printed in Subclass"); } public static void main(String[] args) { Subclass s = new Subclass(); s.printMethod(); } } WithinSubclass, the simple nameprintMethod()refers to the one declared inSubclass, which overrides the one inSuperclass. So, to refer toprintMethod(...