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AP Computer Science Principles
A substring is a smaller portion of a larger string extracted based on its starting and ending positions within that string.
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Indexing (String): Refers to accessing individual characters within a string using their position or index value.
Length (String): The total number of characters in a string, including spaces and punctuation marks.
Slice (String): Similar to substring but allows for extracting multiple characters at once, based on a specified range.