how does a variable to be decided it's value without it's initialize in systemverilog?

[u24c02]

Dear all.

Now I'm trying to digging the systemverilog as the below

 

  denaliCdn_ahbTransaction burst1;

   task sendTransfers;
   
      burst1= new;       
      burst1.Direction = DENALI_CDN_AHB_DIRECTION_WRITE;
      burst1.FirstAddress = 32'h4020;//16416 M3 and M0 to S1
      burst1.Kind = DENALI_CDN_AHB_BURSTKIND_INCR4;
      burst1.Size = DENALI_CDN_AHB_TRANSFERSIZE_HALFWORD;
      burst1.Data = new [8];

      foreach (burst1.Data[ii])
       burst1.Data[ii] = ii;
      
      void'(activeMaster1.transAdd(burst1,0));

        ....

        endtask

From here , how does ii be decided it's value without initialized ?

 

 

how does a variable to be decided it's value without it's initialize in systemverilog?