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which is the ternary operator?
can you explain what the "?" and ":" do?

Can anyone tell me what the "?" and ":" mean in the following statement?

int y = (x < 100) ? (z > 1 ) ? 4 : 3 : 2;

ohhhhhhhhhhhhhhhhhhhhh I see what I did. i know it was a noob mistake, but thanks!!

--- Update ---

Now how would you be able to convert an array into a string?

Here is the code again. Does this make it easier to figure out?


public class Variable {


private double[] array;

public Variable(){
array[0] = 0.0;

well, i compiled the code many times, and there were no error messages while compiling; only while running.
While running, however, it says that their is a NullPointerException on


<array[0] =...

it just keeps prompting me to go to Debug mode, and does not provide a way to correct it, but i know that the error lies in
"public Variable(){
array[0] = 0.0;
}"
b/c that's where the debug first...

what kind of IDE are you using?
if you are using notepad, I suggest you download an IDE such as Eclipse online. They have very easy tutorials on how to use them, and it makes programming much...

Here is my partial code:

public class Variable {


private double[] array;

public Variable(){
array[0] = 0.0;
}