ArrayList的自动扩容

ArrayList的自动扩容是指当ArrayList中的元素个数超过了已分配的数组长度时，会自动对数组进行扩容。具体来说，当需要添加元素到ArrayList中时，如果当前元素个数已经达到了数组的长度，就会触发扩容操作。扩容操作会创建一个新的更大的数组，并将原数组中的元素复制到新数组中。通常情况下，ArrayList的扩容是以原来数组长度的1.5倍进行扩容的。这样做的目的是为了减少频繁的扩容操作，提高性能。\[1\]\[2\]
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- *1* [【Java集合】ArrayList自动扩容机制分析](https://blog.csdn.net/cy973071263/article/details/128690099)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insertT0,239^v3^insert_chatgpt"}} ] [.reference_item]
- *2* [ArrayList自动扩容（详细篇）](https://blog.csdn.net/lz17267861157/article/details/131348110)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insertT0,239^v3^insert_chatgpt"}} ] [.reference_item]
- *3* [ArrayList扩容机制](https://blog.csdn.net/TiankkTT/article/details/127221265)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v91^insertT0,239^v3^insert_chatgpt"}} ] [.reference_item]
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