c# - the variable is assigned but its value is never used -

private void btnhasil_click(object sender, eventargs e)     {         int rataipa = convert.toint32(nipa.text);         int uipa, uipa1, uipa2, uipa3, uipa4;          if ((rataipa >= 61) && (rataipa <= 69))         {             uipa1 = (70 - rataipa) / 10;             uipa2 = (rataipa - 60) / 12;         }         else if ((rataipa == 60) && (rataipa >= 70) && (rataipa <= 72))         {             uipa2 = (rataipa - 60) / 12;         }         else if ((rataipa >= 76) && (rataipa <= 84))         {             uipa3 = (85 - rataipa) / 13;             uipa4 = (rataipa - 75) / 10;         }         else if ((rataipa >= 72) && (rataipa <= 75) || (rataipa == 85))         {             uipa3 = (85 - rataipa) / 13;         }         else             uipa = 1;     } 

i try build errors shows in variable uipa , shows variable 'uipa' assigned value never used used after , don't know how fix. can ?

you assign uipa @ end of code never it.

else uipa = 1; 

to remove warning, need uipa or remove above statement entirely. far compiler concerned, uipa serves no purpose.

if decide use uipa later in if statement, sure initialise uipa default value else run different warning unitialised variables.

int uipa = 0, ....;  // initialise uipa here default value . . . else uipa = 1;  if (uipa ==1) // solve variable assigned never used problem {     //  }