StringBuffer sb=new StringBuffer("");
StringTokenizer st=new StringTokenizer(str,"\n\r");
while(st.hasMoreTokens()){
sb.append(st.nextToken());
}
str=sb.toString();
StringTokenizer st=new StringTokenizer(str,"\n\r");
while(st.hasMoreTokens()){
sb.append(st.nextToken());
}
str=sb.toString();
str=str.replaceAll("[\\n\\r]","");