String Split() function

[patnim17]

Hi,
Is there a function called split() that I can use to split a string by a delimiter in Java?

pat

 

[wangdong]

The answer is yes.

split(String regex)


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[Diancecht]

From java.lang.String class, btw.

It's a good practice to take a look at javadocs to find methods:

http://java.sun.com/j2se/1.4.2/docs/api/java/lang/String.html#split(java.lang.String)

Cheers,
Dian

 

[patnim17]

Hi,
When I try this simple program..it throws a :
"Exception in thread "main" java.lang.NoSuchMethodError"
during run time...


import java.util.*;
import java.lang.*;


public class TestParseURL {
public static void main(String args[]) {
String str="t3://156.30.228.1,156.30.228.6:19002";
String strArr[] = str.split(",");
System.out.println(strArr[0] + "---" + strArr[1]);
}
}

 

[Diancecht]

This has nothing to do with your error, but you don't need to import java.lang. It's automatically done.

The split method came with JDK 1.4. If you have a prior version, it won't work.

If that's the case, I'd suggest taking a look at StringTokenizer class.

Cheers,
Dian

 

[Aradon]

I Agree fully on the StringTokenizer idea. It was stated somewhere that the tokenizer is actually the prefered way to doing it.

http://java.sun.com/j2se/1.5.0/docs/api/java/util/StringTokenizer.html

An example:

import java.util.StringTokenizer;

public class test
{
  public static voic main (String args[])
  {
    String str = "123.123.123.123,123.123.123.123";
    StringTokenizer token = new StringTokenizer(str, ",");
    while(token.hasMoreTokens())
      System.out.println(token.nextToken());
  }
}

 

[sedj]

Aradon, StringTokenizer is NOT the preferred method of breaking strings up - the String.split() method is.

From the API doc you actually posted :

StringTokenizer is a legacy class that is retained for compatibility reasons although its use is discouraged in new code. It is recommended that anyone seeking this functionality use the split method of String or the java.util.regex package instead.

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[Diancecht]

Although no one still provided a reason for that ...

Cheers,
Dian

 

[Aradon]

Doh! I had it backwards. Well. That's okay. We all make mistakes.