I want to get it to loop at each method/section, but I'm getting errors. When I comment out each do while, they work perfectly, however as a whole I get:
Exception in thread "main" java.lang.StringIndexOutOfBoundsException: String index out of range: 0 at java.lang.String.charAt(Unknown Source) at RecursionTester.main(RecursionTester.java:25)
My code:
import java.util.Scanner;
public class RecursionTester {
public static void main(String[] args) {
int power;
int base;
String sentence;
int digit;
int num;
char answer;
Scanner sc = new Scanner(System.in);
do {
System.out.print("What base would you like? ");
base = sc.nextInt();
System.out.print("What power would you like? ");
power = sc.nextInt();
System.out.println(base + " to the " + power + " power is " + raiseToPower(base, power));
System.out.print("\nWould you like raise another number to a power (y or n)? ");
answer = sc.nextLine().charAt(0);
} while (answer == 'Y' || answer == 'y');
do {
System.out.print("Type a sentence and check if it's a palindrome: ");
sentence = sc.nextLine().trim();
if (palindrome(sentence))
System.out.println(sentence + " is a palindrome");
else
System.out.println(sentence + " is not a palindrome");
System.out.print("\nWould you like to reverse another text string (y or n)? ");
answer = sc.nextLine().charAt(0);
} while (answer == 'Y' || answer == 'y');
sc.close();
}
//private methods here
}