UrlEncode

public class Extras {

public static String URLencode(String s){
if (s!=null) {
StringBuffer tmp = new StringBuffer();
int i=0;
try {
//s=java.net.URLEncoder.encode(s,"UTF-8");

while (true) {
int b = (int)s.charAt(i++);
if ((b>=0x30 && b<=0x39) || (b>=0x41 && b<=0x5A) || (b>=0x61 && b<=0x7A)) {
tmp.append((char)b);
}
else {
tmp.append("%");
if (b <= 0xf) tmp.append("0");
tmp.append(Integer.toHexString(b));
}
}

}

catch (Exception e) {
}

return tmp.toString();
}

return null;
}


public static String removecommas(String str)
{
try{
if(str.contains(","))
{
str=str.replace(",","");

return str;
}

else
return str;

}catch(Exception e){
return null;
}

}


public static String removeminus(String str)
{
try{
if(str.contains("-"))
{
str=str.replace("-","");
return str;
}
else
return str;


}catch(Exception e){
return null;
}

}
}