Computer Applications
The String method, which results only in a positive integer, is :
- indexOf
- lastIndexOf
- compareTo
- length
Java String Handling
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Answer
length
Reason — The length() method of the String class returns the number of characters in the string as a positive integer. Other methods like indexOf and lastIndexOf return the position of a character or substring, which can be -1 if not found, and compareTo returns an integer that can be positive, negative, or zero depending on lexicographical comparison.
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