Java Reference
In-Depth Information
Although there's space for 5 values, we're only using the first 3 here, and
that's okay.
Getting values out looks just like putting values in, only the other way around.
Using the code we just looked at, you retrieve the values like this:
int
myBestQuiz = quizScores[1];
int
aBadDay = quizScores[2];
To get all the values, you can use an old-fashioned
for
loop:
for
(
int
i=0; i < 5; i++) {
me.chat(
"Quiz score #"
+ i +
": "
+ quizScores[i]);
}
Remember that
Array
is a fixed size; if you try to retrieve a value that's past
the end of the array (like
quizScores[15]
), your plugin will throw an error and
crash. In this case, since we define the
quizScores
array to have a size of 5, you
can safely store and retrieve values at index 0, 1, 2, 3, and 4. That's why we
use
i<5
in the middle, instead of
<=
.
It's a lot safer to use the
Array
's
.length
field instead of hard-coding a number
like “5.” So it would be better to write that loop like this:
for
(
int
i=0; i < quizScores.length; i++) {
me.chat(
"Quiz score #"
+ i +
": "
+ quizScores[i]);
}
In a little bit we'll discuss an even better way to loop through all the values
in an array.
Let's do the same thing now, but with Minecraft blocks.
Here's an example of code for a quick plugin that builds a tower of different
block types. I'm using our helper function
setBlockAt
to change air into one of
several different materials.
1
Let's walk through this and see what's happening.
Plugin: ArrayOfBlocks
package
arrayofblocks;
import
net.canarymod.plugin.Plugin;
import
net.canarymod.logger.Logman;
import
net.canarymod.Canary;
import
net.canarymod.commandsys.*;
1.
The codes for different materials are in the Canary API docs at
https://ci.visualillusionsent.net/
