在Java中初始化布尔数组 [英] initializing a boolean array in java

问题描述

我有这个代码

public static Boolean freq[] = new Boolean[Global.iParameter[2]];
freq[Global.iParameter[2]] = false;

有人可以告诉我我到底在做什么错，我该如何纠正?我只需要将所有数组元素初始化为布尔型false. 谢谢

could someone tell me what exactly i'm doing wrong here and how would i correct it? I just need to initialize all the array elements to Boolean false. thank you

推荐答案

我只需要将所有数组元素初始化为布尔型false.

请改用boolean[]，以便所有值均默认为false:

Either use boolean[] instead so that all values defaults to false:

boolean[] array = new boolean[size];

或使用还要注意，数组索引是从零开始的.您在此处的freq[Global.iParameter[2]] = false;行将导致ArrayIndexOutOfBoundsException.要了解有关Java中数组的更多信息，请查阅此基本Oracle教程

Also note that the array index is zero based. The freq[Global.iParameter[2]] = false; line as you've there would cause ArrayIndexOutOfBoundsException. To learn more about arrays in Java, consult this basic Oracle tutorial.

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