In line If statement

Question

bit of a newbie and trying to avoid a null pointer exception in a statement, so I want to set the value to an empty string. I am using the following code but it doesn't seem to be working, the value is still null.

row[2]==null? "" : row[2].toString()

Any help would be apreciated

Hi there, I tried with the 4 spaces, I am still left with a null value.

Are you setting that statement equal to anything? `String value = row[2]==null ? "" : row[2].toString();` — Hovercraft Full Of Eels, Dec 28 '17 at 16:36
You may want to use [`Objects.requireNonNullElse(...)`](https://docs.oracle.com/javase/9/docs/api/java/util/Objects.html#requireNonNullElse-T-T-) instead. — Turing85, Dec 28 '17 at 16:39
https://stackoverflow.com/questions/218384/what-is-a-nullpointerexception-and-how-do-i-fix-it/218510#218510 — Blue Shrapnel, Dec 28 '17 at 16:42
@BlueShrapnel OP does not have an NPE, OP wants to avoid `null` values. — Turing85, Dec 28 '17 at 16:43
@steve please show a bit more context in your code. It's not clear how you're using this expression, what the value of `row` is, etc. — Andy Turner, Dec 28 '17 at 16:50

score 2 · Answer 1 · answered Dec 28 '17 at 16:39

2

I'm guessing you want to assign a defaultValue to row[2] which can be achieved like below:

row[2] = row[2] == null ? defaultValue : row[2];

but a normal if would make more sense and be even clearer:

if(row[2] == null){
     row[2] = defaultValue;
}

answered Dec 28 '17 at 16:39

Lino

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while (iter.hasNext()) – steve Dec 28 '17 at 19:35
while (iter.hasNext()) { Object[] row = (Object[]) iter.next(); vt = new TestObject(row[0].toString() row[1].toString(), row[2]==null ? "" : row[2].toString(), row[3].toString()); pendingList.add(vt); } row 2 is null and I get an error when I try to save data. I want to set the value to blank so I do not get the null error. – steve Dec 28 '17 at 19:39

In line If statement

1 Answers1