否则没有如果布尔错误

Question

Wondering if someone could help see why this is returning an error on there being an else without an if. I have tried looking at other questions to no avail

public boolean isLate()   {
if( done = false); AND (deadline.hasPassed = true);   {
return true;
} else{
    return false;}
}

Answer 1

AND is not correct. It must be replaced by && and move inside the ìf definition. Moreover use == to compare instead of =

if(done == false && deadline.hasPassed == true) {
    return true;
} else {
    return false;
}

Because done and deadline.hasPassed seem to be booleans, you can simplify it writting ( ! means not )

if(!done && deadline.hasPassed) {
    return true;
} else {
    return false;
}

Which can be simplify as

public boolean isLate()   {
    return !done && deadline.hasPassed;
}

Answer 2

The thing you are looking for is:

public boolean isLate() {
    return ((done == false) && (deadline.hasPassed == true));
}

But this kind of basic understanding in java can be googled!