The doubleValue() method of Float class is a built in method to return the value specified by the calling object as double after type casting. Syntax:
FloatObject.doubleValue()
Return Value: It return the double value of this Float object. Below programs illustrate doubleValue() method in Java: Program 1:
Java
// Java code to demonstrate// Float doubleValue() methodclass GFG { public static void main(String[] args) { // Float value float a = 17.65f; // wrapping the Float value // in the wrapper class Float Float b = new Float(a); // doubleValue of the Float Object double output = b.doubleValue(); // print doubling the output System.out.println("Float value of " + b + " is : " + output); }} |
Output:
Float value of 17.65 is : 17.649999618530273
Program 2:
Java
// Java code to demonstrate// Float doubleValue() methodclass GFG { public static void main(String[] args) { // Float value float a = 6.0f; // wrapping the Float value // in the wrapper class Float Float b = new Float(a); // doubleValue of the Float Object double output = b.doubleValue(); // print doubling the output System.out.println("Float value of " + b + " is : " + output); }} |
Output:
Float value of 6.0 is : 6.0
Reference: https://docs.oracle.com/javase/7/docs/api/java/lang/Float.html#doubleValue()
