String replace?

[shmmeee]

Hi,
I'm new to java, I was wandering if there is a way to replace a substring within a string. e.g. say I've got a string : string1 = "Hello this is a string and it is pointless!" I could replace all the occurances of a word(say "is&quot with another word (eg. string1 becomes "Hello this WAS a string and it WAS pointless!&quot Is that possible or does anyone have any code that would do that?
TIA

 

[pipk]

There is a replace(char oldChar, char newChar) method in the String class but you can only change one char at a time - I am not sure if you can do it with more than one char at a time.

 

[LittleWing]

no, there isn't an existing method to do this for you. you'll have to do it yourself.

 

[shmmeee]

It's OK I decided I might as well spend half an hour coding it than 2 hours looking on the net for the answer
Thanks anyway

 

[Guest_imported]

I was having a similar problem only...I was trying to replace a certain character (&&) with a HTML breakline. Is this even possible? I know you can do it in ASP, but I was wondering about Javascript

 

[Guest_imported]

static String replace (String source, String toFind, String toInsert)
{
StringBuffer buf= new StringBuffer();
int cursor=0;
while ( true )
{
int foundAt=source.indexOf(toFind, cursor);
if ( foundAt >= 0)
{
buf.append( source.substring(cursor, foundAt) );
buf.append(toInsert);
}
else
{
buf.append(source.substring(cursor));
return buf.toString();
}
cursor=foundAt+1;
}
}

 

[Guest_imported]

Almost...

The last line should be

cursor = foundAt + toFind.length();

which skips over the entire found substring.