Prog for read a number and display all sets of sum of concetuive number

class sum_consucative
    {
        public void chk_sum_consucative(int n)
            {
                int i,j,t,f,chk=0,a;
                for(i=1;i<n;i++)
                    {
                        t=0;
                        f=0;
                        for(j=i;j<=n;j++)
                            {
                                t+=j;
                                if( t == n)
                                    {
                                        chk=1;
                                        f=1;
                                        break;
                                    }
                                else if(t>n)
                                    break;
                            }
                       if( f == 1)
                            {
                                for(a=i;a<j;a++)
                                    System.out.print(a+" + ");
                                System.out.print(a + " = " + n);
                                System.out.println();
                            }
                    }
                 if( chk == 0)
                    System.out.print("Sorry set not possiable................");
            }
    }