In Java with explanation please.

Unfortunately, the Unicode values of the characters '0'-'9' do not correspond to the integer value of the characters. That is, the Unicode values of '0-9' are 48-57, not 0-9. But we can easily convert these characters to their integer values by subtracting 48. In particular, if c is a variable of type char containing a digit '0'-9', then we can create a variable x of type int with the corresponding integer value as follows: int xc48 Use this conversion technique in a program that reads in three digits, converts them to a three- digit integer, doubles the value of the integer, and then prints out the result. For example, if the input is '3', '4, and '5', then the output is 690