Java - Float Class intBitsToFloat() Method

Float class intBitsToFloat() method: Here, we are going to learn about the intBitsToFloat() method of Float class with its syntax and example. By Preeti Jain Last updated : March 21, 2024

Float class intBitsToFloat() method

intBitsToFloat() method is available in java.lang package.
intBitsToFloat() method follows IEEE 754 floating-point standards and according to standards, it returns the float value corresponding to a given argument that denotes integer bits representation.
intBitsToFloat() 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.
intBitsToFloat() method does not throw an exception at the time of converting bits representations to float value.

Syntax

public static float intBitsToFloat(int bits_rep);

Parameters

int bits_rep – represents the integer value in bits.

Return Value

The return type of this method is float, it returns the float value that represent the given argument in integer bits.

If we pass "0x7f800000", it returns the value "positive infinity".
If we pass "0xff800000", it returns the value "negative infinity".
If value lies in between "0x7f800001" and "0x7fffffff" or the value lies in between "0xff800001" and "0xffffffff".

Example

// Java program to demonstrate the example 
// of intBitsToFloat (int bits_rep)
// method of Float class

public class IntBitsToFloatOfFloatClass {
    public static void main(String[] args) {
        // Variables initialization
        int value1 = 20;
        int value2 = 0x7f800000;
        int value3 = 0xff800000;

        // Display value1,value2,value3 values
        System.out.println("value1: " + value1);
        System.out.println("value2: " + value2);
        System.out.println("value3: " + value3);


        // It returns the float value denoted by the given 
        // bit representation by calling Float.intBitsToFloat(value1)
        float result1 = Float.intBitsToFloat(value1);

        // It returns the float value denoted by the given 
        // bit representation by calling Float.intBitsToFloat(value2)
        float result2 = Float.intBitsToFloat(value2);

        // It returns the float value denoted by the given 
        // bit representation by calling Float.intBitsToFloat(value3)
        float result3 = Float.intBitsToFloat(value3);

        // Display result1,result2, result3 values
        System.out.println("Float.intBitsToFloat(value1): " + result1);
        System.out.println("Float.intBitsToFloat(value2): " + result2);
        System.out.println("Float.intBitsToFloat(value3): " + result3);
    }
}

Output

value1: 20
value2: 2139095040
value3: -8388608
Float.intBitsToFloat(value1): 2.8E-44
Float.intBitsToFloat(value2): Infinity
Float.intBitsToFloat(value3): -Infinity

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