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Tip of the Day
Language: Math processing
Expertise: Beginner
Jul 6, 1998

Converting String to double

Question:
How can I convert a String to a double and back again?

Answer:
You can use the java.text.NumberFormat class to convert a String to a double and back again. Use the parse(String) method to convert to a double. This will actually return a java.lang.Double wrapper class instance, so you need to use doubleValue() to fetch the value of the double. To convert to a String, you can either use Double.toString(double) or NumberFormat.format(double).

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