Selection Sort in Java

 Machine Problem

 Write a Java program that will perform selection sort algorithm by asking the user to give a number and then it is display the original arrangement of numbers, and its sorted values.

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Program Listing

package test;

import java.util.Scanner;  

/*

 * Selection_Sort.java

 * 

 * Jake Rodriguez Pomperada, MAED-IT, MIT

 * www.jakerpomperada.com  and www.jakerpomperada.blogspot.com

 * jakerpomperada@gmail.com

 * Bacolod City, Negros Occidental Philippines

 * 

 * Machine Problem

 * 

 * Write a Java program that will perform selection sort algorithm by

 * asking the user to give a number and then it is display the original

 * arrangement of numbers, and its sorted values.

 * 

 */

public class Selection_Sort {

  public static void main(String args[])  

   {  

       int size, i, j, temp;  

       int arr[] = new int[50];  

       

       @SuppressWarnings("resource")

Scanner scan = new Scanner(System.in);  

       

       System.out.println();

       System.out.println("\tSelection Sort in Java");

       System.out.println();

         

       System.out.print("Enter Array Size : ");  

       size = scan.nextInt();  

         

       

       for(i=0; i<size; i++)  

       {  

       System.out.print("Enter Element Value No." + (i+1) + ": "); 

       arr[i] = scan.nextInt();  

       }  

         

       System.out.println();

       System.out.print("UnSorted Array Values : \n");  

       System.out.println();

       for(i=0; i<size; i++)  

       {  

           System.out.print(arr[i]+ "  ");  

       }  

       

       System.out.println();

         for(i=0; i<size; i++)  

       {  

           for(j=i+1; j<size; j++)  

           {  

               if(arr[i] > arr[j])  

               {  

                   temp = arr[i];  

                   arr[i] = arr[j];  

                   arr[j] = temp;  

               }  

           }  

       }  

         

       System.out.println();

       System.out.print("Sorted Array Values : \n");  

       System.out.println();

       for(i=0; i<size; i++)  

       {  

           System.out.print(arr[i]+ "  ");  

       }  

       

       System.out.println("\n\n");

       System.out.print("End of Program \n");  

       System.out.println();

       scan.close();

   }  

}