Hey try this
import java.io.*;
public class Palindrome
{
private String palin;
public Palindrome()
{
palin = "";
}
public Palindrome(String str)
{
palin = str;
}
public static boolean testPalindrome(String s)
{
String a = s.toLowerCase( );
String b = "";
for (int x = 0; x < a.length ( ); x++)
{
char c = a.charAt(x);
if (c >='a' && c <= 'z')
{
b += c;
}
}
String d = "";
for (int y = b.length()-1; y >= 0; y--)
{
d += b.charAt(y);
}
return (b.equals(d));
}
public static void main(String []args)
throws IOException
{
BufferedReader in = new BufferedReader(new InputStreamReader(System.in));
System.out.println("\tWelcome to the Palindrome Tester!!!\t\n Enter a word Phrase or String\n Press q or type quit to stop the program at anytime");
String ing = "";
do{
System.out.println("Input?");
ing = in.readLine();
if (testPalindrome(ing) == true)
{
System.out.println("\t"+ing+" is a palindrome");
}
else
{
System.out.println("\t"+ing+" is not a palindrome");
}
}while (!ing.equalsIgnoreCase("q") &&
!ing.equalsIgnoreCase("quit"));
}
}
: : Hi! Just started using Java not to long ago and have a question for a program
: :
: : I'm suppoosed to check to see if an entered String is a palindrome or not..I have created the checking method, but do not know if it is correct. I also have to still create the constructer method. Here is what I have so far:
: :
: :
: : // Lab16ast.java
: : // This is the student version of the Lab16a assignment.
: :
: :
: : import java.io.*;
: :
: :
: : public class Lab16a
: : {
: : public static void main (String args[]) throws IOException
: : {
: : BufferedReader input = new BufferedReader(new InputStreamReader(System.in));
: : System.out.println("Enter a string ===>> ");
: : Palindrome p=new Palindrome(input.readLine());
: : p.displayData();
: :
: :
: : }
: : }
: :
: :
: : class Palindrome
: : {
: : private String s;
: : private boolean palindrome;
: :
: : private boolean isPal()
: : {
: :
: : int start = 0;
: : int end = s.length() - 1;
: : while (start <= end)
: : {
: : if (s.charAt(start) != s.charAt(end))
: : {
: : return false;
: : }
: : start++;
: : end--;
: : }
: :
: : return true;
: :
: : }
: :
: : public Palindrome(String s)
: : {
: :
: :
: : }
: :
: : public void displayData()
: : {
: : System.out.println(s);
: : System.out.println(palindrome);
: :
: : }
: :
: :
: : }
: :
: :
: :
: Although this is not really the right board for Java (Java and Javascript are two completely different languages) and I am not a Java programmer, I might see a problem in the isPal() method. The return value might always be true, if Java does not break out the method upon setting the return value to false.
:
