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
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