Re: End of String

From:
Nigel Wade <nmw@ion.le.ac.uk>
Newsgroups:
comp.lang.java.programmer
Date:
Tue, 26 Sep 2006 17:17:11 +0100
Message-ID:
<efbjq8$p74$1@south.jnrs.ja.net>
sara wrote:

Hi Guys,

I am very sorry to reply my messages and I know it is very not good.


Replying to others who have responded to you is the norm.

The reason for asking such a question is just curiosity. Because I know
in C++ we can easily implement strlen() function by checking each
character but in Java I could not get any good solution.


In Java it's very easy:

static int strlen(String str) {
 return str.length();
}

Even more pointless, but not using length() per your original request :

static int strlen(String str) {
  int i=0;
  try {
    while(true) {
     str.getChar(i);
     i++;
    }
  }
  catch(IndexOutOfBoundsException) {
   return i;
  }
}

Are they enough to meet your requirements?

HINT: there is no need to implement a strlen "function" in Java because it is
not necessary in the way that it is in C/C++. A String in Java is an object,
and a part of that object is its own length, and a method to access it.

--
Nigel Wade, System Administrator, Space Plasma Physics Group,
            University of Leicester, Leicester, LE1 7RH, UK
E-mail : nmw@ion.le.ac.uk
Phone : +44 (0)116 2523548, Fax : +44 (0)116 2523555

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