Rank function for a number or an array

Question

I am making the player ranking system. Every player finishes the game in minimum time. To make the system, I have generated a random array of 100 numbers. Now I want to have the second array of let's say 5 elements. Which will be the random array also and I want to rand these five elements which may not be in that array of may be in between the consecutive numbers.

array([48425.41897186, 49791.74686595, 50637.6692345 , 51287.48403098,
   51799.4937794 , 52261.37861867, 52656.14894694, 53016.05001912,
   53319.51413285, 53613.1572321 , 53884.85189549, 54133.26576367,
   54369.24268884, 54602.45429572, 54824.0431121 , 55028.76273135,
   55225.52231596, 55422.08148893, 55614.70856782, 55790.25574904,
   55966.69616331, 56130.87364057, 56296.84241876, 56449.88078966,
   56608.27073321, 56765.40364215, 56921.28268835, 57077.1635885 ,
   57222.81105772, 57368.09444527, 57504.20581419, 57642.81117631,
   57783.76446837, 57921.46851864, 58065.22310307, 58200.13860351,
   58325.12910768, 58462.47722569, 58595.54625497, 58726.54371695,
   58851.6376891 , 58985.00769808, 59119.15752146, 59248.91267942,
   59377.08378369, 59504.93791765, 59633.1467344 , 59763.72088164,
   59886.39027783, 60019.02739838, 60147.06211421, 60278.91505155,
   60400.41707501, 60526.78944757, 60651.09681352, 60773.59377531,
   60903.3130914 , 61035.07430937, 61161.05200311, 61286.28399277,
   61419.73128784, 61548.88168331, 61678.23125819, 61817.95792148,
   61948.2306147 , 62091.7046512 , 62226.53485998, 62367.68337618,
   62504.82268713, 62644.56529322, 62791.4105829 , 62937.55206985,
   63094.47498604, 63249.99101185, 63405.82395567, 63558.83126992,
   63730.35479375, 63893.18410211, 64063.05247982, 64234.61509263,
   64418.23843848, 64606.76243476, 64800.75451622, 65009.26210584,
   65219.78865272, 65435.37137585, 65684.50945914, 65933.51808688,
   66192.20550111, 66475.37401097, 66770.66277284, 67101.61275613,
   67448.96286764, 67844.22369744, 68294.14575387, 68836.7503846 ,
   69484.01436583, 70336.85011311, 71689.84667803, 82113.06510423])

Here is the array that I want to rank.

    dataPoit_list.add(40425.00);
    dataPoit_list.add(53590.00);
    dataPoit_list.add(54622.00);
    dataPoit_list.add(56802.00);
    dataPoit_list.add(50664.00);
    dataPoit_list.add(58086.00);
    dataPoit_list.add(59624.00);
    dataPoit_list.add(52641.00);

The first element is not in the array. It means the player finished the race really fast. The second element is between two numbers. Is there any ranking function in java? if now how can I make this ranking system? It's a very common question but I could not find a single solution here.

Answer 1

First you should convert your array to list,because with an array it's nearly impossible to solve this problem. There is the solution

List<Double> array = new ArrayList();
        Collections.addAll(array = new ArrayList<Double>(), 48425.41897186, 49791.74686595, 50637.6692345, 51287.48403098,
                51799.4937794, 52261.37861867, 52656.14894694, 53016.05001912,
                53319.51413285, 53613.1572321, 53884.85189549, 54133.26576367,
                54369.24268884, 54602.45429572, 54824.0431121, 55028.76273135,
                55225.52231596, 55422.08148893, 55614.70856782, 55790.25574904,
                55966.69616331, 56130.87364057, 56296.84241876, 56449.88078966,
                56608.27073321, 56765.40364215, 56921.28268835, 57077.1635885,
                57222.81105772, 57368.09444527, 57504.20581419, 57642.81117631,
                57783.76446837, 57921.46851864, 58065.22310307, 58200.13860351,
                58325.12910768, 58462.47722569, 58595.54625497, 58726.54371695,
                58851.6376891, 58985.00769808, 59119.15752146, 59248.91267942,
                59377.08378369, 59504.93791765, 59633.1467344, 59763.72088164,
                59886.39027783, 60019.02739838, 60147.06211421, 60278.91505155,
                60400.41707501, 60526.78944757, 60651.09681352, 60773.59377531,
                60903.3130914, 61035.07430937, 61161.05200311, 61286.28399277,
                61419.73128784, 61548.88168331, 61678.23125819, 61817.95792148,
                61948.2306147, 62091.7046512, 62226.53485998, 62367.68337618,
                62504.82268713, 62644.56529322, 62791.4105829, 62937.55206985,
                63094.47498604, 63249.99101185, 63405.82395567, 63558.83126992,
                63730.35479375, 63893.18410211, 64063.05247982, 64234.61509263,
                64418.23843848, 64606.76243476, 64800.75451622, 65009.26210584,
                65219.78865272, 65435.37137585, 65684.50945914, 65933.51808688,
                66192.20550111, 66475.37401097, 66770.66277284, 67101.61275613,
                67448.96286764, 67844.22369744, 68294.14575387, 68836.7503846,
                69484.01436583, 70336.85011311, 71689.84667803, 82113.06510423);

        List<Double> dataPoit_list = new ArrayList();
        dataPoit_list.add(40425.00);
        dataPoit_list.add(53590.00);
        dataPoit_list.add(54622.00);
        dataPoit_list.add(56802.00);
        dataPoit_list.add(50664.00);
        dataPoit_list.add(58086.00);
        dataPoit_list.add(59624.00);
        dataPoit_list.add(52641.00);
        
        for (int i = 1; i <array.size(); i++) {
            for(Double x: dataPoit_list){
                if(array.get(i)>x&&array.get(i-1)<x){
                    array.add(array.indexOf(array.get(i)),x);
                 }
                else if(array.get(0)>x){
                    array.add(0,x);
                }
            }
        }
        for (int i = 0; i <array.size(); i++) {
            for (Double x:dataPoit_list) {
                if(array.get(i).equals(x)){
                    System.out.println("The placement of the values from the dataPoit_list (The value is the nth element of the first array): "+(array.indexOf(array.get(i))+1));
                }
            }
        }`