String Working with string representations of floating point values can lead to produce incorrect conclusions about the precision of the values. For example, consider converting the conversion of a value of from type float to the type double, a widening primitive conversion. Refer to the guideline FLP10-J. Do not cast primitive integer types to floating-point types without range checks for more details about such conversions.
String representations of floating-point numbers shall not be compared or inspected. When the value of the a float variable must be represented exactly using the double type, an explicit assignment is more appropriate than first converting the floating point value to a String and then to a double.
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