public class palindrome
{public static void main(String a[])
{while(true)
{
String pa=JOptionPane.showInputDialog("Please input the string:");
int half_pa=pa.length()/2;
int i=half_pa;
while(pa.charAt(i)==pa.charAt(pa.length()-i-1)&&i!=0)
{
i--;
};
if(i==0)
{
int answer = JOptionPane.showConfirmDialog(null, "This string is palindrome./nEnd program?", "Result.", JOptionPane.YES_NO_OPTION);
if (answer == JOptionPane.YES_OPTION)
System.exit(0);
else if (answer == JOptionPane.NO_OPTION)
System.out.println("/nOne more time");
}
else
{
int answer = JOptionPane.showConfirmDialog(null,"This string is not palindrome./nEnd program?","Result.",JOptionPane.YES_NO_OPTION);
if (answer == JOptionPane.YES_OPTION)
System.exit(0);
else if (answer == JOptionPane.NO_OPTION)
System.out.println("/nOne more time");
}
}
}
}
