Program On Different Combination Of Number In BlueJ

import java.io.*;

class NumberCombination

{

 int n,i,sum,j,flag;

 BufferedReader br=new BufferedReader(new InputStreamReader(System.in));

 public void take()throws Exception

 {

  System.out.println("\nEnter the number:");

  n=Integer.parseInt(br.readLine());

  for(i=n;I >0;i--)

  {

   sum=0;

   flag=0;

   for(j=i;j>0;j--)

   {

    sum=sum+j;

    if(sum >n)

    {

     flag=1;

     break;

     }

   System.out.print(j+" ");

   }

   if(flag==0)

   {

    for(;sum< n;sum++)

    System.out.print(1+" ");

    }

else if( i==0 && ((j+n)-sum)==0)

    System.out.print((j+n)-sum);

else if( i!=0 && ((j+n)-sum)!=0)

    System.out.print((j+n)-sum);

    System.out.println();

    }

    }

    public static void main(String args[])throws Exception

    {

     NumberCombination ob=new NumberCombination();

     ob.take();

     }

     }

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