Finding a string in an array.

[rokit boy]

Let's say I have an Array of strings:

String[] a;
a = new String[3]
a[0] = "a"
a[1] = "b"
a[2] = "c"

and let's say I have another string:

String stuff = "b"

How can I make it so I have it that when there is a "b" in the array then it will do something?
Like print "b is in the array"?

[Fubarable]

Have you tried anything yet? If so, can you show us as well as any problems with the code? If not, what do you think might work?

[rokit boy]

I have tried some stuff, but nothing worked.

[Fubarable]

I have tried some stuff, but nothing worked.

Let's see what you've tried, and then let's figure out why it didn't work.

[rokit boy]

Well I tried random stuff like a["b"] but of course there is so many reasons why that is incorrect.
Then I searched through methods. Nothing.
Then I tried something clever from my side:

for (String thing : a) {
	if (a.matches(thing)) {
		print("Found it!");
	}
}

but a wild NullPointerException has appeared from the wild grass and killed my pokemon.
Why the Exception?
Edit: I think I know what I did wrong.
Replace the String thing with stuff, hopefully it will work.

[rokit boy]

Found it out!
Use it if you want.

for (String thing : a) {
    if (thing == b) {
	print("Found it!");
    }
}

[DarrylBurke]

Moved from Advanced Java

db

[DarrylBurke]

Never use == to compare Strings or any other reference types. Use the .equals(...) method.

db

[rokit boy]

Yep, i changed it in my original code.