Need help for programing

Hi all.. i need a program code(C++ , C#, java etc...) to find a union ,intersection,mines of 2 sets... same as
A={1,2,4,5}
B={1,3,4,5}
C={1,2,6,7}
A U B=...
A-B= ....
A-C=.....
etc...
Amybody can help me?

 

Hi There
I Will Help You But Let Me First Know All Kind Of Operations You Need In The Program
Thank You

 

thx for helping..
i need a program that get 2 or 3 sets same as A and B and C and give us the
A U B =
A intersect B= ( i cant right intersect becouse my keyboard dont have )
A-B=
C-B-A=
this 4 thing..
i mean sets same as A={1,2,3,4..}

 

hi all...
..........
A U B = ..
javascript:
..........

Code:

JSH:
...
var sum=new Array();
for ( var i=1 ; i < A.length ; i++ )
  {
      sum[i]=A[i];
  }
for ( var j=1 ; j < B.length ; j++ )
  {
     var flag=1;
     for ( var k=1 ; k < sum.length ; k++ )
       {
          if ( B[j]==sum[k] )
            {
               flag=0;
               break;
            }
        }
     if (flag==1)
        {
           sum[sum.length]=B[j];
        }
  }
return sum;  //sum= A u B;
...

...Ok...
........