Okay so I made a program to check for palindromes but I need to be able to restart the program by asking if the user wants to try again y/n? But I can't seem to loop it correctly. Help me! P.S sorry for formatting.
import java.util.*;
import java.util.Scanner;
class PalidromeTester
{
public static void main(String args[])
{
boolean play = true;
while(play == true){
String inputString;
Scanner in = new Scanner(System.in);
System.out.println("Please enter a potential palindrome:");
inputString = in.nextLine();
int length = inputString.length();
int i, begin, end, middle;
begin = 0;
end = length - 1;
middle = (begin + end)/2;
for (i = begin; i <= middle; i++) {
if (inputString.charAt(begin) == inputString.charAt(end)) {
begin++;
end--;
}
else {
break;
}
}
if (i == middle + 1) {
System.out.println("That string is a palindrome.");
}
else {
System.out.println("Sorry, that string is not a palindrome.");
}
System.out.println("y/n?");
String playagain = in.nextLine();
if (playagain == "y")
play = true;
else
play = false;
}
}
}
Takeshi Okada
30-Dec-2014Try this:
if ("y".equalsIgnoreCase(playagain))
Don't use == to compare Strings. All that does is compare reference values. You want equals(): it compares String contents.