Open In App

Number.doubleValue() method in java with examples

Improve
Improve
Like Article
Like
Save
Share
Report

The java.lang.Number.doubleValue() is an inbuilt method in java that returns the value of the specified number casted as a double data type. This may involve rounding or truncation.

Syntax:

public abstract double doubleValue()

Parameters: This method does not accepts any parameter.

Return value: This method returns the numeric value represented by this object after conversion to type double.

Below programs illustrate the Number.doubleValue()method:

Program 1:




// java program that demonstrates
// the Number.doubleValue()
public class gfg {
  
    public static void main(String[] args)
    {
  
        // number as integer
        Integer x = new Integer(1234785456);
        // print value as double
        System.out.println(x.doubleValue());
  
        // number as float
        Float y = new Float(98745876f);
        // print value as double
        System.out.println(y.doubleValue());
    }
}


Output:

1.234785456E9
9.8745872E7

Program 2:




// java program that demonstrates
// the Number.doubleValue()
  
public class gfg {
  
    public static void main(String[] args)
    {
  
        // number as integer
        Integer x = new Integer(123);
        // print value as double
        System.out.println(x.doubleValue());
  
        // number as float
        Float y = new Float(9876f);
        // print value as double
        System.out.println(y.doubleValue());
    }
}


Output:

123.0
9876.0


Last Updated : 20 Jun, 2018
Like Article
Save Article
Previous
Next
Share your thoughts in the comments
Similar Reads