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length() method

Definition

The length() method is a built-in function in Java that returns the number of characters in a string.

Analogy

Think of the length() method as a ruler that measures the length of a string. Just like you can use a ruler to measure the length of an object, you can use the length() method to measure the number of characters in a string.

Related terms

substring(int beginIndex, int endIndex): This method extracts a portion of a string based on the specified beginning and ending indexes.

equals(String other): This method compares two strings and returns true if they are equal, and false otherwise.

charAt(int index): This method returns the character at the specified index position in a string.

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AP® and SAT® are trademarks registered by the College Board, which is not affiliated with, and does not endorse this website.