Write a java program on Bubble Sort

/* Bubble Sort program in java */
import java.lang.*;
import java.io.*;
class BubbleSort
{
        public static void main(String args[])throws IOException
        {
               BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
               int n,i,j,temp;
               System.out.println("----Welcome to the Bubble Sort Prog----");
               System.out.println("Hi mani how many elements you have");
               n=Integer.parseInt(br.readLine());
               int a[]=new int[n];
               System.out.println("Enter " +n+ " Elements");
               for(i=0;i<n;i++)
                a[i]=Integer.parseInt(br.readLine());
               System.out.println("Before Sorting");
               for(i=0;i<n;i++)
                System.out.print("\t"+a[i]);

               for(i=0;i<n;i++)
               {
                for(j=i+1;j<n;j++)
                {
                        if(a[i]>a[j])
                        {
                                temp=a[j];
                                a[j]=a[i];
                                a[i]=temp;
                        }
                 }
                }
                System.out.println("\nAfter Sorting");
                for(i=0;i<n;i++)
                 System.out.print("\t" +a[i]);
       }
}
              
Output:

----Welcome to the Bubble Sort Prog----
Hi mani how many elements you have
5
Enter 5 Elements
20
30
20
15
20
Before Sorting
        20      30      20      15      20
After Sorting
        15      20      20      20      30

Posted in: Java