Java - Float floatToIntBits() method

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Description

The Java Float floatToIntBits() method returns a representation of the specified floating-point value according to the IEEE 754 floating-point "single format" bit layout.It includes the following important points −

• If the argument is positive infinity, the result is 0x7f800000.
• If the argument is negative infinity, the result is 0xff800000.
• If the argument is NaN, the result is 0x7fc00000.

Declaration

Following is the declaration for java.lang.Float.floatToIntBits() method

 public static int floatToIntBits(float value) 

Parameters

value − This is a floating-point number.

Return Value

This method returns the bits that represent the floating-point number.

Exception

NA

Getting int Bits from Float Object having Positive Value Example

The following example shows the usage of Float floatToIntBits() method to get a int bits format of the given positive float value. We've initialized a Float object with a given positive float value. Then using floatToIntBits() method, we're printing its value in int bit format.

 package com.tutorialspoint; public class FloatDemo { public static void main(String[] args) { Float d = new Float("15.30"); //returns the bits that represent the floating-point number System.out.println("Value = " + Float.floatToIntBits(d)); } } 

Output

Let us compile and run the above program, this will produce the following result −

 Value = 1098173645 

Getting int Bits from Float Object having Negative Value Example

The following example shows the usage of Float floatToIntBits() method to get a int bits format of the given negative float value. We've initialized a Float object with a given negative float value. Then using floatToIntBits() method, we're printing its value in int bit format.

 package com.tutorialspoint; public class FloatDemo { public static void main(String[] args) { Float d = new Float("-15.30"); //returns the bits that represent the floating-point number System.out.println("Value = " + Float.floatToIntBits(d)); } } 

Output

Let us compile and run the above program, this will produce the following result −

 Value = -1049310003 

Getting int Bits from Float Object having Positive Zero Value Example

The following example shows the usage of Float floatToIntBits() method to get a int bits format of the given zero float value. We've initialized a Float object with a given positive zero float value. Then using floatToIntBits() method, we're printing its value in int bit format.

 package com.tutorialspoint; public class FloatDemo { public static void main(String[] args) { Float d = new Float("0.0"); //returns the bits that represent the floating-point number System.out.println("Value = " + Float.floatToIntBits(d)); } } 

Output

Let us compile and run the above program, this will produce the following result −

 Value = 0 

Getting int Bits from Float Object having Negative Zero Value Example

The following example shows the usage of Float floatToIntBits() method to get a int bits format of the given negative zero float value. We've initialized a Float object with a given positive float value. Then using floatToIntBits() method, we're printing its value in int bit format.

 package com.tutorialspoint; public class FloatDemo { public static void main(String[] args) { Float d = new Float("-0.0"); //returns the bits that represent the floating-point number System.out.println("Value = " + Float.floatToIntBits(d)); } } 

Output

Let us compile and run the above program, this will produce the following result −

 Value = -2147483648