在数组Java中查找最小值和第二最小值

像这样的东西：

findSecondSmallest anArray[]:    if anArray.length < 2:        return null;    fastest = anArray[0];    secondFastest = anArray[1];    if fastest > secondFastest:        fastest = anArray[1];        secondFastest = anArray[0]    for each element in anArray:        if element < fastest: secondFastest = fastest; fastest = element;        else if element < secondFastest: secondFastest = element;    return secondFastest