ArrayList初始容量及扩容概述
初始容量结论: new ArrayList<>();容量是 transient Object[] elementData;private static final Object[] DEFAULTCAPACITY_EMPTY_ELEMENTDATA = {};public ArrayList() { this.elementData = DEFAULTCAPACITY_EMPTY_ELEMENTDATA; }就是这个空数组,所以容量为0add扩容先看ad
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2021-05-19 14:11:58 ·
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