Question

I am having problem to split string in java. it gives java.util.regex.Pattern.error.

 String name = One\Two\Three.
 String[] str = name.split("\\");
 for(int i =0; i < str.length ; i++)
    System.out.println(str[i]);

I put another \ as escape character but not working.

help me.

Answer 1

One\Two\Three is not a valid string literal (you need quotes and you need to escape the backslashes).

String name = "One\\Two\\Three.";
String[] str = name.split("\\\\");
for(int i =0; i < str.length ; i++)
   System.out.println(str[i]);

works fine.

Explanation

String#split expects a regular expression. The backslash character has a special meaning inside regular expressions, so you need to escape it by using another backslash: \\ Now because the backslash character also has a special meaning inside Java string literals, you have to double each of these again, resulting in "\\\\".