Java Number - doubleValue() Method

The java.lang.Number.doubleValue() method returns the value of the specified number as a double, which may involve rounding.

Syntax

public abstract double doubleValue()

Parameters

No parameter is required.

Return Value

Returns the numeric value represented by this object after conversion to type double.

Exception

NA.

Example:

In the example below, the java.lang.Number.doubleValue() method returns the double value of the given numbers.

import java.lang.*;

public class MyClass {
  public static void main(String[] args) {
    
    //creating an Integer value
    Integer val1 = 123;

    //creating a Float value
    Float val2 = 55.75f;

    //printing the double value of given numbers
    System.out.println("double value of val1: " + val1.doubleValue()); 
    System.out.println("double value of val2: " + val2.doubleValue());   
  }
}

The output of the above code will be:

double value of val1: 123.0
double value of val2: 55.75

❮ Java.lang - Number