public String RemoveSpecialcharactersFromAmount(String str){
			
			String st = "";
			for(int i = 0; i < str.length(); i++){
				int ch = str.charAt(i);
	
				if((ch >= 65 && ch <= 90) || (ch >= 97 && ch <= 122) || (ch >= 48 && ch <= 57) || ch==46 || ch==45){
					st = st + (char) ch;
				}
	
			}
	
			return st;
		}