面试官Java字符串的相关内容

面试官问：一个Java字符串中到底能有多少个字符?

依照Java的文档， Java中的字符内部是以UTF-16编码方式表示的，最小值是 \u0000 (0),最大值是\uffff(65535)，也就是一个字符以2个字节来表示，难道Java最多只能表示 65535个字符？char: The char data type is a single 16-...

面试官刁难：Java字符串可以引用传递吗？(2)

当 count -= len 执行之后，value 的字符内容仍然为“沉默王二”，但 count 变成了 3。当鼠标停留在 this 上时，此时的字符内容为“沉默王”，也就意味着 x 当前的字符内容为“沉默王”。同样的，当我们在 append() 方法上进行 debug 的时候，也可以观察到字符串发...

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面试官刁难：Java字符串可以引用传递吗？(1)

老读者都知道了，六年前，我从苏州回到洛阳，抱着一幅“海归”的心态，投了不少简历，也“约谈”了不少面试官，但仅有两三个令我感到满意。其中有一位叫老马，至今还活在我的手机通讯录里。他当时扔了一个面试题把我砸懵了：“王二，Java 字符串可以引用传递吗？”我当时二...

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更新时间 2023-01-16 11:29:15

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