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isDigit comparison table
Subject is an instance of is a subtopic of have purpose is a synonym of have example is a kind of be a member of have has definition
class method Methodsimplementing functions such as initializing a class, or operating on the complete set of instances of a classstatic method method 'this' value when it is executingA method that is invoked without reference to a particular object
isDigitclass methodExample Methodsto test if a Character is a digit 
// tests if a Character is a digit 
boolean b = Character.isDigit(aChar);
 the wrapper class Character classspecification 

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