JAVA Program to check a String for palindrome

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import java.io.*;
class palindrome
{
public static void main(String arg[])throws IOException
{
DataInputStream in=new DataInputStream(System.in);
int l,i,j,flag=1;
String s;
System.out.println("Enter the string:");
s=in.readLine();
l=s.length();
for(i=0,j=l-1;i<=j;i++,j--)
{
if(s.charAt(i)==s.charAt(j))
{}
else
{
flag=0;
break;
}
}
if(flag==1)
System.out.print(s+" is palindrome");
else
System.out.print(s+" is not palindrome");
}
}

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