Java Collection Random Element randomElement(Collection coll)

Here you can find the source of randomElement(Collection coll)

Description

random Element

License

Apache License

Declaration

public static <T> T randomElement(Collection<T> coll)

Method Source Code


//package com.java2s;
//License from project: Apache License 

import java.util.Collection;

public class Main {
    public static <T> T randomElement(Collection<T> coll) {
        int num = (int) (Math.random() * coll.size());
        for (T t : coll)
            if (--num < 0)
                return t;
        throw new AssertionError();
    }//from  ww w.j a  v  a  2  s.c  o  m
}

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