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在Java开发中,数组与集合的转换是高频操作,而Arrays.asList()常被误用为普通List,实则返回的是定长数组视图。当调用add()或remove()时,会抛出UnsupportedOperationException,成为线上服务的隐患。理解其底层持有原数组引用的原理,能帮助开发者区分可变集合、不可变集合与视图语义。通过包装为new ArrayList ...
Java 二维数组(2D Array)是一维数组在多维方向上的自然扩展,也是矩阵运算、图像处理、棋盘类算法等场景中最基础的数据载体。本文以 cosmos 仓库中 readme-2DArray.md为主线,结合同一目录下的可 ...