How to split string on '~|~' separator in Java?

Question

I have input String '~|~' as the delimiter.

For example: String s = "1~|~Vijay~|~25~|~Pune"; when I am splitting it with '~\\|~' in Java it is working fine.

String sa[] = s.split("~\\|~", -1);
for(String str : sa) {
    System.out.println(str);
}

I am getting the below output.

1
Vijay
25
Pune

When the same program I am running by passing a command-line argument('~\\|~'). It is not properly parsing the string and giving it below output.

1
|
Vijay
|
25
|
Pune

Is anyone else facing the same issue? please comment on this issue.

Answer 1

You only need a single backslash when running it from the command line. The reason you need two when making the regular expression in Java is that backslash is used to escape the next character in a string literal or start an escape sequence so one backslash is needed to escape the next one in order for it to be interpreted literally.

~\|~