Removing all fraction symbols like “¼” and “½” from a string

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Fraction symbols like ¼ and ½ belong to Unicode Category Number, Other [No]. If you are ok with eliminating all 676 characters in that group, you can use the following regular expression:

itemName = itemName.replaceAll("\\p{No}+", "");

If not, you can always list them explicitly:

// As characters (requires UTF-8 source file encoding)
itemName = itemName.replaceAll("[¼½¾⅐⅑⅒⅓⅔⅕⅖⅗⅘⅙⅚⅛⅜⅝⅞↉]+", "");

// As ranges using unicode escapes
itemName = itemName.replaceAll("[\u00BC-\u00BE\u2150-\u215E\u2189]+", "");

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