除了提供我自己的描述之外,我可能会要求您例如在以下位置阅读它:http
:
//en.wikipedia.org/wiki/Variable_shadowing。了解变量的阴影后,建议您继续阅读有关覆盖/阴影方法和可见性的一般知识,以全面了解此类术语。
实际上,由于该问题是根据Java术语提出的,因此这里有一个迷你示例:
public class Shadow { private int myIntVar = 0; public void shadowTheVar(){ // since it has the same name as above object instance field, it shadows above // field inside this method int myIntVar = 5; // If we simply refer to 'myIntVar' the one of this method is found // (shadowing a seond one with the same name) System.out.println(myIntVar); // If we want to refer to the shadowed myIntVar from this class we need to // refer to it like this: System.out.println(this.myIntVar); } public static void main(String[] args){ new Shadow().shadowTheVar(); } }
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