Regular Expressions in java

[blue404]

hi
how can i use Regular Expressions in java to define this pattern and check that name and id aren;t null.
name:id

[Norm]

If name and id are String variables, then you can use the == operator to test for null values.
I don't know how a regex can look at nothing. It could look at an empty string.
The == test for null is the simplest.

Or is the problem: Your have a String: 'null:xxx' or 'xxx:null' and you want to see if that string contains the string "null"?

Look at the Pattern and Matcher classes. Search will probably get you several examples.

[Eranga]

To find the null you can't use a regular expression, not a 'null' string. So as Norm you can use == operator in simple way.

I'm not clear what you are asking here anyway. Can you more descreptive