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/**

     * 将array中的元素添加到colleciotn中

     * @param array

     * @param c

     */

    public void fromArrayToCollection(Object[] array,Collection<Object> c){

        for (Object object : array) {

            c.add(object);

        }

    }

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修饰符 <T,S> 返回值类型 方法名(形参列表){

}

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/**

     * 将array中的元素添加到colleciotn中

     * @param array

     * @param c

     */

    public <T> void fromArrayToCollection(T[] array,Collection<T> c){

        for (T t : array) {

            c.add(t);

        }

    }

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public class GenericTest {

    public static void main(String[] args) {

        Needs needs = new Needs();

        String[] names = {"孙悟空","猪八戒","沙悟净"};

        List<String> c = new ArrayList<String>();

        needs.fromArrayToCollection(names, c);

        Double[] doubles = {2.14,3.14};

        List<Double> doubleList = new ArrayList<Double>();

        needs.fromArrayToCollection(doubles, doubleList);

    }

}

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public static <T> void show(T t){

}