Java Byte doubleValue() Method

by Online Tutorials Library July 22, 2022

Java Byte doubleValue() method

The doubleValue() method of Java Byte class returns a double value for this Byte after a widening primitive conversion.

Syntax:

Parameters:

Overrides

This method is specified by doubleValue in class Number

Return Value

This method returns the numeric value of this object after conversion to type double.

Example 1

  public class JavaByteDoubleValueExample1 {      public static void main(String[] args) {          Byte b1=98;          Byte b2=102;          //returns the numeric value of this object after conversion to type double.          Double d1=b1.doubleValue();          System.out.println(“1. Double value : “+d1);          System.out.println(“2. Double value : “+b2.doubleValue());      }  }  

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Output:

Double value : 98.0  Double value : 102.0

Example 2

  public class JavaByteDoubleValueExample2 {      public static void main(String[] args) {          Byte byte1=Byte.MIN_VALUE;          Byte byte2=Byte.MAX_VALUE;;          System.out.println(“1. “+byte1.doubleValue());          System.out.println(“2. “+byte2.doubleValue());      }  }  

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Output:

 -128.0  127.0

Example 3

  public class JavaByteDoubleValueExample3 {      public static void main(String[] args) {          //byte1 is a primitive data type object, it can?t be used to call Byte class methods          byte byte1=7;          Byte byte2=Byte.MAX_VALUE;;          System.out.println(“1. “+byte1.doubleValue());          System.out.println(“2. “+byte2.doubleValue());      }  }  

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Output:

Error:(7, 39) java: byte cannot be dereferenced

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Java Byte doubleValue() Method

Java Byte doubleValue() method

Syntax:

Parameters:

Overrides

Return Value

Example 1

Example 2

Example 3

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