Assignment #117: Number Puzzle II
Code
import java.util.Scanner;
public class NumberPuzzleII {
public static void main(String [] args) {
Scanner kb = new Scanner(System.in);
int choice;
System.out.println("1. Find two digit numbers <= 56 with sums of digits > 10");
System.out.println("2. Find two digit number minus number reversed which equals sum of digits");
System.out.println("3. Quit");
choice = kb.nextInt();
do {
if (choice == 1) {
digitSum();
System.out.println("1. Find two digit numbers <= 56 with sums of digits > 10");
System.out.println("2. Find two digit number minus number reversed which equals sum of digits");
System.out.println("3. Quit");
choice = kb.nextInt();
}
if (choice == 2) {
digitReverse();
System.out.println("1. Find two digit numbers <= 56 with sums of digits > 10");
System.out.println("2. Find two digit number minus number reversed which equals sum of digits");
System.out.println("3. Quit");
choice = kb.nextInt();
}
} while (choice <= 2);
if (choice == 3) {
System.out.println("Goodbye!");
}
}
public static void digitSum() {
for (int x = 1; x <= 5; x++) {
for (int n = 0; n <= 9; n++) {
if (x + n == 10) {
System.out.println ((10 * x) + n);
}
}
}
}
public static void digitReverse() {
for (int y = 1; y <= 9; y++) {
for (int p = 0; p <= 9; p++) {
if (((10 * y) + p) - ((10 * p) + y) == (p + y)) {
System.out.println((10 * y) + p);
}
}
}
}
}
Picture of the output
