Java Classic Programming question 50-way 17

Monkey Eat Peach Problem: The first day the monkey took off a number of peaches, immediately ate half, not enjoyable, and ate one more, the next morning, the remaining peaches eaten half, but also eat one more. Every morning after eating the rest of the day half of the zero one. By the 10th morning when I wanted to eat again, there was only one peach left. Ask how many peaches were picked on the first day.

public class Example17 {
public static void Main (string[] args) {
int sum = Peach (1);
System.out.println ("First day of total pick up" + sum + "peach");
}

public static int Peach (Int. day) {
if (day = = 10) {
return 1;
} else {
Return (Peach (day + 1) + 1) * 2;
}

}
}

Java Classic Programming question 50-way 17