Java Double doubleToRawLongBits() Method with Examples

by Online Tutorials Library July 22, 2022

Java Double doubleToRawLongBits() Method

The doubleToRawLongBits() method of Double class returns a floating-point value according to the IEEE 754 floating-point “double format” bit layout, preserving Not-a-Number(NaN) values.

Syntax

Parameters

Value is the double parameter passed which is a double precision floating-point number.

Return value

The doubleToLongBits(double value) method returns the bits that represent the floating-point number.

If the argument is positive infinity, the result returned is 0x7ff0000000000000L.
If the argument is negative infinity, the result returned is 0xfff0000000000000L.
If the argument is NaN, the result returned is the long integer representing the actual NaN value. The doubleToRawLongBits() method does not collapse with the bit patterns encoding a NaN to a single ” cannonical” NaN value.

Example 1

  public class Double_doubleToRawLongBitsMethod_Example1 {        public static void main(String[] args) {            //returns the bits that represent the floating-point number          Double obj = 5.5;          System.out.println(obj + ” value in  Raw long bits = ” + Double.doubleToRawLongBits(obj));              //0/0 argument is NaN,          Double obj1 = 0.0 / 0.0;          System.out.println(obj1 + ” value in Raw long bits =” + Double.doubleToRawLongBits(obj1));              // positive integer divided by zero gives infinity          Double obj2 = obj / 0;          System.out.println(obj2 + ” value in Raw long bits =” + Double.doubleToRawLongBits(obj2));            // negative integer divided by zero gives negative infinity          Double obj3 = -obj / 0.0;          System.out.println(obj3 + ” value in Raw long bits=” + Double.doubleToRawLongBits(obj3));          }  }  

Test it Now

Output:

5.5 value in  Raw long bits = 4617878467915022336  NaN value in Raw long bits =9221120237041090560  Infinity value in Raw long bits =9218868437227405312  -Infinity value in Raw long bits=-4503599627370496

Example 2

  public class Double_doubleToRawLongBitsMethod_Example2 {        public static void main(String[] args) {                    double d1=65876856.6756756;                    //Creating class object          Double_doubleToRawLongBitsMethod_Example2 obj = new Double_doubleToRawLongBitsMethod_Example2();              //Converting  double to long Bits          long d2= obj.doubleToRawLongBits(d1);          System.out.println(d1+” value in long bits = “+d2);      }  }  

Test it Now

Output:

Error:(13, 21) java: cannot find symbol    symbol:   method doubleToLongBits(double)    location: variable obj of type com.interf.Double_doubleToRawLongBitsMethod_Example2

Double is a primitive data type. Its object cannot be used to call the Double class method. If you do so, it will give the error like above.

Example 3

  public class Double_doubleToRawLongBitsMethod_Example3 {        public static void main(String[] args) {           //passing negative value          double d1=-65876856.6756756;            Double d2= new Double(7658659.78678);                    //either call doubleToRawLongBits() method this way          long d3= Double.doubleToRawLongBits(d1);          System.out.println(d1+”value in Raw long bits = “+d3);            //either call it directly inside println          System.out.println(d2+” value in Raw long bits = “+d2);      }  }  

Test it Now

Output:

-6.58768566756756E7value in Raw long bits = -4499261384967075684  7658659.78678 value in Raw long bits = 7658659.78678

Next TopicJava Double

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Java Double doubleToRawLongBits() Method with Examples

Java Double doubleToRawLongBits() Method

Syntax

Parameters

Return value

Example 1

Example 2

Example 3

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