Passing data from inside if to condition else if

int c = 2;
int a = 1;


if(a==1){
   if(b=2)
     {c = 3;} 
   else 
     {d = 4;}
}

else if(c==3){
system.out.println("Success");
}

else{
system.out.println("Failed")}

I want display "Success" but value c is 2 .. not 3 .. How i can pass data from if to be condition else ?