How to convert from float to bigDecimal in java?

Question

How to convert from float to bigDecimal in java?

Answer 1

BigDecimal value = new BigDecimal(Float.toString(123.4f)); 

From the javadocs, the string constructor is generally the preferred way to convert a float into a BigDecimal, as it doesn't suffer from the unpredictability of the BigDecimal(double) constructor.

Quote from the docs:

Note: For values other float and double NaN and ±Infinity, this constructor is compatible with the values returned by Float.toString(float) and Double.toString(double). This is generally the preferred way to convert a float or double into a BigDecimal, as it doesn't suffer from the unpredictability of the BigDecimal(double) constructor.

Answer 2

float f = 45.6f; BigDecimal bd = BigDecimal.valueOf(f); 

Quote from documentations:

Note: This is generally the preferred way to convert a double (or float) into a BigDecimal, as the value returned is equal to that resulting from constructing a BigDecimal from the result of using Double.toString(double).

Reference: BigDecimal (Java Platform SE 6)