"Invalid assignment" error from == operator
- by Tom
I was trying to write a simple method:
boolean validate(MyObject o)
{
// propertyA && propertyB are not primitive types.
return o.getPropertyA() == null && o.getPropertyB() == null;
}
And got a strange error on the == null part:
Syntax error on token ==. Invalid
assignment operator.
Maybe my Java is rusty after a season in PLSQL. So I tried a simpler example:
Integer i = 4;
i == null;
// compile error: Syntax error on token ==. Invalid assignment operator.
Integer i2 = 4;
if (i == null); //No problem
How can this be?
I'm using jdk160_05.
To clarify: I'm not trying to assign anything, just do an && operation between two boolean values. I don't want to do this:
if (o.propertyA() == null && o.propertyB() == null) { return true; }
else { return false; }
