How to break a string into an array

Question

I have a problem with parsing text, i have transcript of interview and i have a tag which channel is talking (ch1,ch2). And i need to break it into array and i could to search in which channel someone tells specific word.

For example this is a part of interview

<ch1>Hello</ch1> <ch2>Hello</ch2> <ch1>How are you</ch1><ch2>I'm fine</ch2>

This is a string

String text = "<ch1>Hello</ch1> <ch2>Hello</ch2> <ch2>How are you</ch2>
<ch2>I'm fine</ch2>";

And i want output

 String output[] = {<ch1>Hello</ch1>,<ch2>Hello</ch2>,....}

Thanks for help.

Answer 1

You can use a regular expression with lookahead and lookbehind :

String dialogue = "<ch1>Hello</ch1> <ch2>Hello</ch2> <ch1>How are you</ch1><ch2>I'm fine</ch2>";
String[] statements = dialogue.split("(?<=</ch[12]>)\\s*(?=<ch[12]>)");
System.out.println(Arrays.asList(statements));

Output:

[<ch1>Hello</ch1>, <ch2>Hello</ch2>, <ch1>How are you</ch1>, <ch2>I'm fine</ch2>]

It's a bit hard to read due to the many < and > , but the pattern is like this:

split("(?<=endOfLastPart)inBetween(?=startOfNextPart)")

Answer 2

text.split("<ch").join("-<ch").split("-").

可以是任何字符串而不是“ - ”可以使用。