String/substrings

[Guest_imported]

Hey everyone,

I have a quick question...

Is there a predefined method within the String class to see if a word exists within a word?

For example,

If a variable: fullString = "racecar";
and I want to find out if partString = "car" exists within stringExample...is this possible without specifying an exact index?

Basically I would like to know if there is a function that I can say

Does partString exist in fullString? --> true or false?

Any feedback is appreciated.

Thanks in advance,

-Jin

 

[wushutwist]

From String API:

indexOf

public int indexOf(String str)


Returns the index within this string of the first occurrence of the specified substring. The integer returned is the smallest value k such that:


 this.startsWith(str, k)
 
is true.

Parameters:

str - any string.

Returns:

if the string argument occurs as a substring within this object, then the index of the first character of the first such substring is returned; if it does not occur as a substring, -1 is returned.

Throws:

NullPointerException - if str is null.

Wushutwist

 

[duan]

hi,

I'v encountered such a question. In Java 1.4 Blta version, there are some functions support Regular Expression(RE) which can deal with this problem.
this link is helpful for RE.

http://www.win.net/~stevesoft/pat/

You may also find out more new about Java 1.4 in
java.sun.com

Good luck.

duan

 

[Guest_imported]

thanks i appreciate all the help