I am facing an issue related to converting double
to float
. Actually, I store a float type, 23423424666767
, in a database, but when we get data from the database in the below code, getInfoValueNumeric()
, it’s of double
type. The value we get is in the 2.3423424666767E13
form.
So how do we get a float
format data like 23423424666767
?
2.3423424666767E13 to 23423424666767
public void setInfoValueNumeric(java.lang.Double value) { setValue(4, value); } @javax.persistence.Column(name = "InfoValueNumeric", precision = 53) public java.lang.Double getInfoValueNumeric() { return (java.lang.Double) getValue(4); }
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Answer
Just cast your double to a float.
double d = getInfoValueNumeric(); float f = (float)d;
Also notice that the primitive types can NOT store an infinite set of numbers:
float range: from 1.40129846432481707e-45 to 3.40282346638528860e+38 double range: from 1.7e–308 to 1.7e+308