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BigDecimal floatValue() Method in Java with Examples
• Last Updated : 27 May, 2019

The java.math.BigDecimal.floatValue() converts this BigDecimal to a float. If this BigDecimal has too great magnitude to represent as a float, it will be converted to Float.NEGATIVE_INFINITY or Float.POSITIVE_INFINITY as appropriate. Note that even when the return value is finite, this conversion can lose information about the precision of the BigDecimal value.

Syntax:

public float floatValue()

Parameters: This function accepts no parameter.

Returns: The method returns a float value which represents float value for this BigDecimal.

Examples:

Input: BigDecimal1 = 1234
Output: 1234.0

Input: BigDecimal1 = 21545135451354545
Output: 2.15451365E16
Explanation:
BigInteger1.floatValue() = 2.15451365E16.
This BigDecimal is too big
for a magnitude to represent as a float
then it will be converted to
Float.NEGATIVE_INFINITY or
Float.POSITIVE_INFINITY as appropriate.

Below programs illustrate floatValue() method of BigDecimal class:

Example 1:

 // Java program to demonstrate // floatValue() method of BigDecimal    import java.math.BigDecimal;    public class GFG {     public static void main(String[] args)     {         // For user input         // Use Scanner or BufferedReader            // Object of String created         // Holds the value         String input1             = "545456468445645468464645";            // Convert the string input to BigDecimal         BigDecimal a             = new BigDecimal(input1);            // Using floatValue() method         float f = a.floatValue();            // Display the result         System.out.println(f);     } }

Output:

5.4545646E23

Example 2:

 // Java program to demonstrate // floatValue() method of BigDecimal    import java.math.BigDecimal;    public class GFG {     public static void main(String[] args)     {         // For user input         // Use Scanner or BufferedReader            // Object of String created         // Holds the value         String input1             = "984522";            // Convert the string input to BigDecimal         BigDecimal a             = new BigDecimal(input1);            // Using floatValue() method         float f = a.floatValue();            // Display the result         System.out.println(f);     } }

Output:

984522.0

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