Nuno Mendes :
Can I do something like this?
if(variable = class.GetVariable() != null){
variable.doSomething()
}
As I said in the comments I'm doing this with a HttpSession, so my goal is to check if there is a parameter in the session with a specific name and if it is do something.
Michael Berry :
You can, so long as variable has already been defined and you add additional brackets:
Foo variable;
if ((variable = GetVariable()) != null) {
variable.doSomething();
}
You tend not to see this pattern often as it's not the most readable, but it is often seen when reading from a BufferedReader line by line (as it provides a convenient, quick way to read lines until there aren't any):
String line;
while((line=reader.readLine())!=null) {
//Process each line
}
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