sorting integers in order lowest to highest java

Question

These numbers are stored in the same integer variable  How would I go about sorting the integers in order lowest to highest   11367 11358 11421 11530 11491 11218 11789

User · Answer

import java util Arrays   public class sortNumber    public static void main String   args           Our array contains 13 elements      int   array    9   238   248   138   118   45   180   212   103   230   104   41   49         Arrays sort array         System out printf   The result    s   Arrays toString array

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For sorting narrow range of integers try Counting sort  which has a complexity of O range   n   where n is number of items to be sorted  If you d like to sort something not discrete use optimal n log n  algorithms  quicksort  heapsort  mergesort   Merge sort is also used in a method already mentioned by other responses Arrays sort  There is no simple way how to recommend some algorithm or function call  because there are dozens of special cases  where you would use some sort  but not the other    So please specify the exact purpose of your application  to learn something  well - start with the insertion sort or bubble sort   effectivity for integers  use counting sort   effectivity and reusability for structures  use n log n  algorithms   or zou just want it to be somehow sorted - use Arrays sort  -    If you d like to sort string representations of integers  than u might be interrested in radix sort

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if array sort doesn t have what your looking for you can try this   package drawFramePackage  import java awt geom AffineTransform  import java util ArrayList  import java util ListIterator  import java util Random  public class QuicksortAlgorithm       ArrayList lt AffineTransform gt  affs      ListIterator lt AffineTransform gt  li      Integer count  count2                  param args             public static void main String   args            new QuicksortAlgorithm              public QuicksortAlgorithm            count   new Integer 0           count2   new Integer 1           affs   new ArrayList lt AffineTransform gt             for  int i   0  i  lt   128  i                 affs add new AffineTransform 1  0  0  1  new Random   nextInt 1024   0                      affs   arrangeNumbers affs           printNumbers              public ArrayList lt AffineTransform gt  arrangeNumbers ArrayList lt AffineTransform gt  list           while  list size    gt  1  amp  amp  count    list size   - 1               if  list get count2  getTranslateX    gt  list get count  getTranslateX                     list add count  list get count2                    list remove count2   1                             if  count2    list size   - 1                   count                    count2   count   1                            else              count2                                    return list            public void printNumbers            li   affs listIterator            while  li hasNext                 System out println li next

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You can put them into a list and then sort them using their natural ordering  like so   final List lt Integer gt  list   Arrays asList 11367  11358  11421  11530  11491  11218  11789   Collections sort  list       Use the sorted list   If the numbers are stored in the same variable  then you ll have to somehow put them into a List and then call sort  like so   final List lt Integer gt  list   new ArrayList lt Integer gt     list add  myVariable       Change myVariable to another number    list add  myVariable       etc     Collections sort  list       Use the sorted list    Collections sort  List

User · Answer

Take Inputs from User and Insertion Sort  Here is how it works   package com learning constructor   import java util Scanner     public class InsertionSortArray    public static void main String   args         Scanner s new Scanner System in    System out println  enter number of elements     int n s nextInt      int arr   new int n    System out println  enter elements     for int i 0 i lt n i      for reading array     arr i  s nextInt        System out print  Your Array Is        for int i  arr     for printing array for  int i   0  i  lt  arr length  i         System out print arr i             System out println   n                 int   input   arr      insertionSort input      private static void printNumbers int   input         for  int i   0  i  lt  input length  i              System out print input i                     System out println   n       public static void insertionSort int array          int n   array length      for  int j   1  j  lt  n  j              int key   array j           int i   j-1          while    i  gt  -1   amp  amp    array  i   gt  key                   array  i 1    array  i               i--                    array i 1    key          printNumbers array

User · Answer

Well  if you want to do it using an algorithm  There are a plethora of sorting algorithms out there  If you aren t concerned too much about efficiency and more about readability and understandability  I recommend Insertion Sort  Here is the psudo code  it is trivial to translate this into java   begin     for i    1 to length A -1 do     begin         value    A i           j    i - 1          done    false          repeat               To sort in descending order simply reverse               the operator i e  A j   lt  value               if A j   gt  value then             begin                 A j   1     A j                   j    j - 1                  if j  lt  0 then                     done    true              end             else                 done    true          until done          A j   1     value      end  end

User · Answer

There are two options  really     Use standard collections  as explained by Shakedown Use Arrays sort   E g    int   ints    11367  11358  11421  11530  11491  11218  11789   Arrays sort ints   System out println Arrays asList ints      That of course assumes that you already have your integers as an array  If you need to parse those first  look for String split and Integer parseInt

[java] sorting integers in order lowest to highest java

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