在Eclipse中使用Apache Commons Math

Question

I am new to Java and Eclipse but familiar with other languages.

I want to use

public static Iterator<int[]> combinationsIterator(int n, int k)

I found it on http://commons.apache.org/proper/commons-math/apidocs/org/apache/commons/math3/util/CombinatoricsUtils.html

I have Eclipse installed but I don't know where to go from here. What do I import? What do I have to reference in the header of my code before I can use combinationsIterator ? Thank you.

Answer 1

You have to go download the jar (for their website and add it to Eclipe's classpath.

You want the Math package, which can be downloaded here .

To add it to the classpath, go to Eclipse, right click on your project, go to Properties -> Java Build Path -> Libraries -> Add External Jar and select the jar you downloaded.