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文章目录一、报错信息二、解决方案一、报错信息使用 Comparator 接口 , 对 ArrayList 集合中的元素排序无效 ;打印之后没有进行排序 ;错误代码就不贴出来了 , 随便搜索的代码 , 一用就出错 ;Java 1.7 1.71.7 及以上的版本中 , Comparator 接口 com...

Java ArrayList forEach() 方法的返回值是什么？

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Java ArrayList removeIf() 方法的返回值是什么？

Java ArrayList replaceAll() 方法的返回值是什么？

Java ArrayList removeRange() 方法的返回值是什么？

Java ArrayList trimToSize() 方法的返回值是什么？

Java ArrayList containsAll() 方法的返回值是什么？

Java ArrayList retainAll() 方法的返回值是什么？

Java ArrayList lastIndexOf() 方法的返回值是什么？

Java ArrayList ensureCapacity() 方法的返回值是什么？

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更新时间 2023-10-31 18:58:37

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