Possible Duplicate:
How to split a String by space
I need help while parsing a text file. The text file contains data like
This is different type of file. Can not split it using ' '(white space) My problem is spaces between words are not similar. Sometimes there is single space and sometimes multiple spaces are given.
I need to split the string in such a way that I will get only words, not spaces.
str.split("\\s+") would work. The + at the end of the regular-expression, would treat multiple spaces the same as a single space. It returns an array of strings (String[]) without any " " results.
You can use Quantifiers to specify the number of spaces you want to split on: -
`+` - Represents 1 or more `*` - Represents 0 or more `?` - Represents 0 or 1 `{n,m}` - Represents n to m So, \\s+ will split your string on one or more spaces
String[] words = yourString.split("\\s+"); Also, if you want to specify some specific numbers you can give your range between {}:
yourString.split("\\s{3,6}"); // Split String on 3 to 6 spaces Use a regular expression.
String[] words = str.split("\\s+"); you can use regex pattern
public static void main(String[] args) { String s="This is different type of file."; String s1[]=s.split("[ ]+"); for(int i=0;i<s1.length;i++) { System.out.println(s1[i]); } } output
This is different type of file. 
\t\n\x0B\f\r. Use the character class \s (any whitespace character) instead, as described by the others. String[] words = yourString.split("\\s+"); you can use
replaceAll(String regex, String replacement) method of String class to replace the multiple spaces with space and then you can use split method.
String spliter="\\s+"; String[] temp; temp=mystring.split(spliter); I am giving you another method to tockenize your string if you dont want to use the split method.Here is the method
public static void main(String args[]) throws Exception { String str="This is different type of file.Can not split it using ' '(white space)"; StringTokenizer st = new StringTokenizer(str, " "); while(st.hasMoreElements()) System.out.println(st.nextToken()); } } 
StringTokenizer? Please stop using StringTokenizer.
java string split multiple spaces