In Java, this keyword is used to refer to the current object inside amethodor aconstructor. For example, classMain{intinstVar; Main(intinstVar){this.instVar = instVar; System.out.println("this reference = "+this); }publicstaticvoidmain(String[] args){ Main obj =newMain(8); System.ou...
3、thiskeyword thiskeyword可用于在不论什么实例方法内指向当前对象,也可指向对其调用当前方法的对象,或者在须要当前类型对象引用时使用。 注:当一个类的属性名或成员变量与訪问该属性的方法參数名同样时,则须要使用thiskeyword来訪问类中的属性。以区分类的属性和方法中的參数。 4、superkeyword 因为子类不能继承父...
java基础 this keyword! 为了程序的可读性,通常将一个类中的表示同一属性的变量进行统一的命名。可是这样做又会导致成员变量与局部变量名字冲突导致无法訪问成员变量。为了解决问题,java中引入了this这个keyword!所以this 的作用就是用于在方法中訪问对象的其它成员! thiskeyword有下面三种常见使用方法: 1)通过thiskeyword...
class Demo { public void getName() { System.out.println("Studytonight"); } public Demo display() { // return current object return this; } public static void main(String[] args) { Demo d = new Demo(); Demo d1 = d.display(); d1.getName(); } } ...
Learn: this keyword in Java, in this article we will learn about this Reference, how it can be used when both the Member Name and Parameter name of any method are same.
In this example, theappendandreversemethods both return theStringBuilderExampleobject, allowing them to be chained together in a single expression. In conclusion, thethiskeyword is an important part of Java programming and can be used in a variety of ways to improve the clarity and readability of...
Array in java is used to store multiple values in a single variable i.e. it is a collection of the same type of elements with an adjacent memory location.
[javase学习笔记]-7.6 thiskeyword的原理 这一节我们来讲一个keyword。就是thiskeyword。 我们还是通过样例来看吧: classPerson{privateStringname;privateintage;Person(Stringn,inta){name=n;age=a;}publicvoidspeak(){System.out.println(name+":"+age);}}...
Using the this KeywordWithin an instance method or a constructor, this is a reference to the current object— the object whose method or constructor is being called. You can refer to any member of the current object from within an instance method or a constructor by using this. Using this ...
百度试题 结果1 题目Which is not valid Java keyword? ( ) A. const B. NULL C. false D. this 相关知识点: 试题来源: 解析 B. NULL 反馈 收藏