I need to parse this into strings in the most efficient way. I currently have this line
D[date-string] T[time-string] N[name-string] M[message-string]
Needs to be parsed into four strings respectively,
private String time; //would equal time-string
private String date; //would equal date-string
private String name; //would equal name-string
private String message; //would equal message-string
Is there an easy way to do this?
You can use regex and groups to match and extract that kind of data: For example, something like:
Pattern p = Pattern.compile("D(\\w+) T(\\w+) N(\\w+) M(\\w+)");
Matcher m = p.matcher(yourString);
if (m.matches()){
String d = m.group(1);
String t = m.group(2);
String n = m.group(3);
String w = m.group(4);
}
The patterns within the parentheses are saved into groups, which you can extract after the match (it starts with 1, since 0 is the whole match). You have then to change that to the characters and patterns you want to accept.
I'm not sure if I've understood you but looks like using regular expression is the easiest way to do this kind of parsing.
The below logic will work. How regix will hep not sure. But the below code will also be ok as it is not looping and anything so i think it will could be the optimum solution.
String s = "D[date-string] T[time-string] N[name-string] M[message-string]";
String[] str = s.split(" ");
String date = str[0].substring(str[0].indexOf("[")+1, str[0].lastIndexOf("]")); //would equal time-string
String time=str[1].substring(str[1].indexOf("[")+1, str[1].lastIndexOf("]")); //would equal date-string
String name=str[2].substring(str[2].indexOf("[")+1, str[2].lastIndexOf("]")); //would equal name-string
String message=str[3].substring(str[3].indexOf("[")+1, str[3].lastIndexOf("]"));
