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Updated SelectionSort.java #93

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Merged
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Sep 10, 2017
Merged

Updated SelectionSort.java #93

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116 changes: 68 additions & 48 deletions Sorts/SelectionSort.java
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Original file line number Diff line number Diff line change
@@ -1,53 +1,73 @@
import java.util.Scanner;

/**
* This class implements Selection Sort
*
* @author Unknown
*
* @author Varun Upadhyay (https://github.com/varunu28)
*
*/

class SelectionSort
{
/**
* Main method
*
* @param args Command line arguments
*/
public static void main(String[] args)
{
int array[]=new int[6];
Scanner input=new Scanner(System.in);

//Input
System.out.println("Enter any 6 Numbers for Unsorted Array : ");
for(int i=0; i<6; i++)
{
array[i]=input.nextInt();
}

//Sorting
for(int i=0; i<6; i++)
{
int min=i;
for(int j=i+1; j<6; j++)
{
if(array[j]<array[min])
{
min=j;
}
}
int temp=array[i];
array[i]=array[min];
array[min]=temp;
}

//Output
for(int i=0; i<6; i++)
{
System.out.print(array[i]+"\t");
}

input.close();
}
public class SelectionSort {

/**
* This method implements the Generic Selection Sort
*
* @param arr The array to be sorted
* @param n The count of total number of elements in array
* Sorts the array in increasing order
**/

public static <T extends Comparable<T>> void SS(T[] arr, int n) {

for (int i=0;i<n-1;i++) {

// Initial index of min
int min = i;

for (int j=i+1;j<n;j++) {
if (arr[j].compareTo(arr[min]) < 0) {
min = j;
}
}

// Swapping if index of min is changed
if (min != i) {
T temp = arr[i];
arr[i] = arr[min];
arr[min] = temp;
}
}
}

// Driver Program
public static void main(String[] args) {

// Integer Input
int[] arr1 = {4,23,6,78,1,54,231,9,12};
int n = arr1.length;

Integer[] array = new Integer[n];
for (int i=0;i<n;i++) {
array[i] = arr1[i];
}

SS(array, n);

// Output => 1 4 6 9 12 23 54 78 231
for(int i=0; i<n; i++)
{
System.out.print(array[i]+"\t");
}

System.out.println();

// String Input
String[] array1 = {"c", "a", "e", "b","d"};
n = array1.length;

SS(array1, n);

//Output => a b c d e
for(int i=0; i<n; i++)
{
System.out.print(array1[i]+"\t");
}
}
}