How do I convert from int to Long in Java?

To convert an int to a long in Java, you can simply use the typecast operator (long) and place it in front of the value you want to convert. For example:

int x = 12345;
long y = (long) x;

This will assign the value of x to y as a long.

Alternatively, you can use the Long.valueOf() method to convert an int to a long. For example:

int x = 12345;
long y = Long.valueOf(x);

This will also assign the value of x to y as a long.