Java Double longBitsToDouble() Method with Examples

by Online Tutorials Library July 22, 2022

Java Double longBitsToDouble() Method

The longBitsToDouble() method of Java Double class returns the double value equating to an acknowledged bit representation.

The result is:

Positive infinity, if the argument passed is 0x7ff0000000000000L.
Negative infinity, if the argument passed is 0x7ff0000000000000L.

Syntax

Parameters

bits – is the long integer passed.

Return value

The longBitsToDouble() method returns a floating point value of type double with identical bit pattern.

Example 1

  public class Double_longBitsToDoubleMethodExample1 {      public static void main(String[] args) {                 int value1=76767127;                 Double d1=Double.longBitsToDouble(value1);               System.out.println(“Float value after conversion = “+d1);                 int value2=48667;               //method can be called directly in println function               System.out.println(“Float value after conversion = “+Double.longBitsToDouble(value2));                 //passing negative integer               int value3=-4756;          System.out.println(“Float value after conversion = “+Double.longBitsToDouble(value3));          }  }  

Test it Now

Output:

Float value after conversion = 3.7928E-316  Float value after conversion = 2.40447E-319  Float value after conversion = NaN

Example 2

  public class Double_longBitsToDoubleMethodExample2 {          public static void main(String[] args) {            //result returned is positive infinity           int value1=  0X7f800000;            System.out.println(“1. “+value1+ ” value = “+Double.longBitsToDouble(value1));            // result returned is negative infinity            int value2=0Xff800000;            System.out.println(“2. “+value1+ ” value = “+Double.longBitsToDouble(value2));              int value3 =Integer.MAX_VALUE;            System.out.println(“3. “+value3 + ” value = ” +Double.longBitsToDouble(value3));              int value4 =Integer.MIN_VALUE;            System.out.println(“4. “+ value4 + ” value = ” +Double.longBitsToDouble(value4));    }    }  

Test it Now

Output:

1. 2139095040 value = 1.0568533725E-314  2. 2139095040 value = NaN  3. 2147483647 value = 1.060997895E-314  4. -2147483648 value = NaN

Example 3

  import java.util.Scanner;    public class Double_longBitsToDoubleMethodExample3 {        public static void main(String[] args) {              Scanner scanner = new Scanner(System.in);            System.out.println(“Enter first integer:”);            int value1=scanner.nextInt();            System.out.println(“1. Double value = “+Double.longBitsToDouble(value1));              System.out.println(“nEnter Second negative integer”);            int value2=scanner.nextInt();            if(value2<0) {                System.out.println(“2. Double value = ” + Double.longBitsToDouble(value2));            }            else{                System.err.println(“plz re enter negative integer.”);            }        }    }  

Test it Now

Output:

Enter first integer:  648375  1. Double value = 3.2034E-318    Enter Second negative integer  -48755  2. Double value = NaN

Next TopicJava Double

byteValue()compare compareTo()double doubleValue()floatValue()intValue()isNaN()java longBitsToDouble()longValue()parseDouble()shortValue()toHexString()toString()valueOf()

Java Double longBitsToDouble() Method with Examples

Java Double longBitsToDouble() Method

Syntax

Parameters

Return value

Example 1

Example 2

Example 3

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