int to double java

In Java, you can convert an int value to a double using the doubleValue() method of the Double class or by using a type cast.

Here is an example of how to convert an int to a double using the doubleValue() method:

int number = 42;
double d = Double.valueOf((double) number).doubleValue();  // d is 42.0

In this example, the int value is first cast to a double, and then the doubleValue() method is used to retrieve the double value.

You can also use a type cast to convert an int to a double directly:

int number = 42;
double d = (double) number;  // d is 42.0

The type cast operator (double) converts the int value to a double by promoting the int value to a double and adding a fractional part of 0.0.

For more information on converting data types in Java, you can refer to the Java documentation.