Question: What is method or constructor overloading? why overloading is useful? If a class has a field called myfield, which is a double, write a method

What is method or constructor overloading? why overloading is useful?

If a class has a field called myfield, which is a double, write a method getField() so a user of the class can get tthe value in that field.

(I want this in java)

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