选择排序并且获取排序后第一个值原来位置的索引

ArrayList<Double> doubles = new ArrayList<>();
doubles.add(1.0);
doubles.add(Double.valueOf(2));
doubles.add(Double.valueOf(3));
doubles.add(Double.valueOf(4));
doubles.add(Double.valueOf(5));
//double[] array={2,4,1,1,3};
for (int i = 0; i <doubles.size(); i++) {
    int minPos = i;
    for (int j = i + 1; j < doubles.size(); j++) {
        if (doubles.get(j) <doubles.get(minPos)){
            minPos = j;
        }
    }
    if (doubles.get(i) > doubles.get(minPos)){
        if (doubles.get(0)>doubles.get(minPos)){
            int a=minPos;//排序后第一个值原来位置的索引
            Log.d("+++++++minPos",""+minPos);
        }
        double temp = doubles.get(i);
        doubles.set(i,doubles.get(minPos));
        doubles.set(minPos,temp);
    }
}
for (int i = 0; i < doubles.size(); i++)
Log.d("+++++++array",""+doubles.get(i));