The java.lang.Number.doubleValue() is an inbuilt method in java that returns the value of the specified number casted as a double data type. This may involve rounding or truncation.
public abstract double doubleValue()
Parameters: This method does not accepts any parameter.
Return value: This method returns the numeric value represented by this object after conversion to type double.
Below programs illustrate the Number.doubleValue()method:
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