How to do split by pipe in java? [duplicate]

Hello friend I recommend you to do this:

To make a split in java using a special character ".", "$", etc... as a separation pattern, we must use the escape characters "\" as a prefix.

Code:

String[] palabras = cadena.split("\\.");

In your case it would be something like this:

 valor1=cadena.split("\\|")[0];

valor2=cadena.split("\\|")[1] ;

This link will also help you:

Split method in Java

Since splitthe class method java.lang.Stringfirst receives a regular expression, the |(unescaped) character is considered to be an alternation operator . ¹

❍ No exhaust

"a|b||d".split("|") ⇒ ["a", "|", "b", "|", "|", "d", ""]

❍ With exhaust

Hence it is necessary to escape the |with \. Namely:

"a|b||d".split("\\|") ⇒ ["a", "b", "", "d"]

❍ No limit

However, it may be more convenient to specify the limit. For example, with no limit specified:

"a|||".split("\\|") ⇒ ["a"]

❍ With limit ( -1)

"a|||".split("\\|", -1) ⇒ ["a", "", "", ""]

Grades

1. Alternation with The Vertical Bar or Pipe Symbol ( in English ).

You have to use

valor1=cadena.split("\\|")[0];

The method split(String regex)uses a regular expression, so you have to escape the |, or you separate by "nothing or nothing".

You can store the elements separated by the pipe in an array |using .split("\\|") :

String cadena = "Mike|Irina|John|Mary|Joseph";
String[] valores = cadena.split("\\|");

or via .split(Pattern.quote("|")) :

  String[] valores = cadena.split(Pattern.quote("|"));

to get your values

String valor1 = valores[0];  //valor Mike 
String valor2 = valores[1];  //valor Irina
String valor3 = valores[2];  //valor John
String valor4 = valores[3];  //valor Mary
String valor5 = valores[4];  //valor Joseph

You can also get the string values ​​directly like this:

String valor1 = cadena.split("\\|")[0]; //valor Mike 
String valor2 = cadena.split("\\|")[1];  //valor Irina
String valor3 = cadena.split("\\|")[2];  //valor John
...

or by .split(Pattern.quote("|")):

 String valor1 = cadena.split(Pattern.quote("|"))[0]; //valor Mike 
 String valor2 = cadena.split(Pattern.quote("|"))[1];  //valor Irina
 String valor3 = cadena.split(Pattern.quote("|"))[2];  //valor John
 ...
 ...

Unlike :

 String[] valores = cadena.split(",");

which can be done without escaping the character ","since it is not a special character.

I would recommend you replace your "\" with "," with the replace java.lang.String method, leaving something like this:

String cadenaN = cadena.replace("\\\",",");
valor1=cadenaN.split(",")[0];
valor2=cadenaN.split(",")[1];

Or do it as indicated above.