Arrays

[Kand]

Hello,

I am student learning Java in high school and I was wondering if you could
help me out.

Can you please tell me how to determine whether a word is a palindrome, (for
example HANNAH or RADAR) using Arrays?
Feel free to reply using source codes.

I would very much appreciated your time and your help,

This is how my program looks right now:
class Palindrome{
public static void main(String str[]){
String word=str[0];
int length = str[0].length()-1;
char charfwd[] = new char[length];
char charbkd[] = new char[length];
int checkback = 0;
for (int i=0; i <= length; i++){
word.charAt(i) = charfwd[i];}
for (int g=length; g >=0; g--)
word.charAt[g] = charbkd[g];
breakOut:
for (int check=0; check <= length; check++) {
checkback = length;
if (charfwd[check].equals(charbkd[checkback])){
checkback = checkback-1;}
else{
System.out.println(word + " is not a palindrome");
break breakOut; }
System.out.println(word + " is a palindrome");
}
}
}




Thank you,
M-Kand

[ak]

Hi I did not test your program. but this is how I wrote.



public class PTest
{

private String m_strInput = null;

public PTest()
{
m_strInput = "RADAR";

if(isPalindrome() == true)
System.out.println("The given word is a palindrome");
else
System.out.println("The given word is NOT a palindrome");


}

public boolean isPalindrome()
{
int intResult = m_strInput.length() %2 ; // modulus operation
int intLengthback = m_strInput.length();
int intMid = intLengthback /2;
int i;

intLengthback = intLengthback -1;

for( i =0; i< intMid; i++)
{
if( m_strInput.charAt(i) == m_strInput.charAt(intLengthback))
intLengthback = intLengthback -1;
else
return false;
}


if (intResult != 0) //If the lenght is Even then one more comparision
{
if(m_strInput.charAt(i) == m_strInput.charAt(intLengthback))
return true;
else
return false;
}
else

return true;

}

public static void main(String str[])
{
PTest ptest = new PTest();
}



}