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Java BigInteger Class | floatValue() Method with Example

BigInteger Class floatValue() method: Here, we are going to learn about the floatValue() method of BigInteger Class with its syntax and example.
Submitted by Preeti Jain, on May 10, 2020

BigInteger Class floatValue() method

  • floatValue() method is available in java.math package.
  • floatValue() method is used to convert this BigInteger into a float and when this BigInteger value is large enough to fit in a float so it will be converted to either Float.POSITIVE_INFINITY or Float.NEGATIVE_INFINITY.
  • floatValue() method is a non-static method, it is accessible with the class object only and if we try to access the method with the class name then we will get an error.
  • floatValue() method does not throw an exception at the time of conversion to a float.

Syntax:

    public float floatValue();

Parameter(s):

  • None

Return value:

The return type of this method is float, it returns the conversion value of this BigInteger into a float.

Example:

// Java program to demonstrate the example 
// of float floatValue() method of BigInteger

import java.math.*;

public class FloatValueOfBI {
    public static void main(String args[]) {
        // Initialize two variables str1 and str2
        String str1 = "8023524678";
        String str2 = "100247853";

        // Initialize two BigInteger objects  
        BigInteger b_int1 = new BigInteger(str1);
        BigInteger b_int2 = new BigInteger(str2);

        // converts this BigInteger (b_int1) into
        // a float, and store the result in a variable 
        // named f_conv
        float f_conv = b_int1.floatValue();
        System.out.println("b_int1: " + b_int1);
        System.out.println("b_int1.floatValue(): " + f_conv);

        System.out.println();

        // converts this BigInteger (b_int2) into
        // a float, and store the result it in a variable 
        // named f_conv
        f_conv = b_int2.floatValue();
        System.out.println("b_int2: " + b_int2);
        System.out.println("b_int2.floatValue(): " + f_conv);
    }
}

Output

b_int1: 8023524678
b_int1.floatValue(): 8.0235249E9

b_int2: 100247853
b_int2.floatValue(): 1.00247856E8
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