guntaka

val input = listOf(12000, 1000, 12000, 25000, 12000, 15000, 12000, 35000)

with(input.sorted().reversed()) { 
  input.map { "$it => ${indexOf(it) + 1}" }
}.forEach(::println)

guntaka

import static java.util.stream.Collectors.joining;
import java.util.stream.IntStream;

public class QuarterlyMonths {
  public static String get(int input) {
    final int offset = (input % 3) == 0 ? 3 : (input % 3);
    return IntStream.range(0,4).mapToObj(i -> String.format("%02d", i * 3 + offset)).collect(joining());
  }
  
  //To test the `get` method

guntaka

import java.util.function.Consumer;
import java.util.function.Supplier;

import io.vavr.Tuple;
import io.vavr.Tuple2;
import io.vavr.collection.Stream;
import io.vavr.control.Option;
import io.vavr.control.Try;

public class FunctionalRetry {

guntaka

sort -k1.1,1.4 -k1.11,1.13