题目内容
What will be the value of str after the following statements are executed? （执行下列语句后，str的值将是多少？）StringBuilder str =new StringBuilder("We have lived in Chicago, " +"Trenton, and Atlanta."); str.replace(17, 24, "Tampa");
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Sometimes a string will contain a series of words or other items of data separated by spaces or other characters. In programming terms, items such as these are known as what?（有时，字符串将包含一系列单词或其他数据项，这些数据项由空格或其他字符分隔开来。在编程术语中，像这样的项目被称为什么？）
What is the term used for the character that separates tokens?（用于分隔符号的字符术语是什么？）
The process of breaking a string down into tokens is known as what? （将字符串分解为符号的过程称为什么？）
To use the StringTokenizer class you must have the following import statement.（要使用StringTokenizer类，必须具有以下哪个导入语句）
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