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Java Float class floatToRawIntBits() method with example

Float class floatToRawIntBits() method: Here, we are going to learn about the floatToRawIntBits() method of Float class with its syntax and example.
Submitted by Preeti Jain, on October 08, 2019

Float class floatToRawIntBits() method

  • floatToRawIntBits() method is available in java.lang package.
  • floatToRawIntBits() method follows IEEE 754 single-precision floating-point standards and according to standards, it returns the bits that denote floating-point value along with preserving NaN value.
  • floatToRawIntBits() method is a static method, it is accessible with the class name too and, if we try to access the method with the class object then also we will not get an error.
  • floatToRawIntBits() method does not throw an exception at the time of representing bits along with preserving NaN (Not a Number).

Syntax:

    public static int floatToRawIntBits(float f);

Parameter(s):

  • float f – represents the single precision floating point value.

Return value:

The return type of this method is float, it returns the bits that represent the single precision floating-point value.

  • If we pass "positive infinity", it returns the value "0x7f800000".
  • If we pass "negative infinity", it returns the value "0xff800000".
  • If we pass "NaN", it returns the actual NaN values (i.e. it does not collapse all the bit encoding a NaN to a "basic" NaN value).

Example:

// Java program to demonstrate the example 
// of floatToRawIntBits (float f)
// method of Float class

public class FloatToRawIntBits {
    public static void main(String[] args) {
        // Variables initialization
        float value1 = 18.20f;
        float value2 = 19.20f;

        // Display value1,value2 values
        System.out.println("value1: " + value1);
        System.out.println("value2: " + value2);


        // It returns the bits denoted by the single precision 
        // floating point argument by calling 
        // Float.floatToRawIntBits(value1)
        int result1 = Float.floatToRawIntBits(value1);

        // It returns the bits denoted by the single precision 
        // floating point argument by calling 
        // Float.floatToRawIntBits(value2)
        int result2 = Float.floatToRawIntBits(value2);

        // Display result1,result2 values
        System.out.println("Float.floatToRawIntBits(value1): " + result1);
        System.out.println("Float.floatToRawIntBits(value2): " + result2);
        System.out.print("Float.floatToRawIntBits(NaN): ");
        System.out.println(Float.floatToRawIntBits(5.0f % 0f));
    }
}

Output

value1: 18.2
value2: 19.2
Float.floatToRawIntBits(value1): 1100061082
Float.floatToRawIntBits(value2): 1100585370
Float.floatToRawIntBits(NaN): 2143289344





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