题目
题目
单项选择题

What is a format specifier?

选项
A.A format specifier is a keyword used to declare and define a custom data type in Java.
B.A format specifier is a Java feature used to control access modifiers and visibility of class members.
C.A format specifier is a special character used in regular expressions to match specific patterns in strings.
D.A format specifier is a placeholder used in formatting strings to specify where and how data should be inserted into the string.
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标准答案
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思路分析
When considering what a format specifier is, it's helpful to parse how each option describes its role in text processing. Option 1: 'A format specifier is a keyword used to declare and define a custom data type in Java.' This describes a language feature related to declaring types or classes, not how strings are ass......Login to view full explanation

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