The default value is 0.0d this means that if you do not append f or d to the end of the decimal, the value will be stored as a double in Java.
When representing a float data type in Java, we should append the letter f to the end of the data type otherwise, it will save as double.ĭouble data type stores decimal values with 15-16 digits of precision. So, for example, 12.12345 can be saved as a float, but 12.123456789 cannot be saved as afloat. The data type should never be used for precise values, such as currency.įloat data type in Java stores a decimal value with 6-7 total digits of precision. The double data type is normally the default choice for decimal values. Always we need to remember that data type should never be used for precise values, such as currency. A float is mainly used to save memory in large arrays of floating-point numbers.
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