Initialize variable inside if statement (Java)

I'm assigning my variables in an if statement and trying to use them outside of it, but I can't figure out how. The error is in the very last if statement stating that "local variable may not have been initialized".

int i,z;
if (st1.nextToken() == "Ace")
{
    String Ace = "14";
    i = Integer.parseInt(Ace);  
}
else if (st2.nextToken() == "Ace")
{
    String Ace = "14";
    z = Integer.parseInt(Ace);
}
else if (st1.nextToken() == "King")
{
    String King = "13";
    i = Integer.parseInt(King); 
}
else if (st2.nextToken() == "King")
{
    String King = "13";
    z = Integer.parseInt(King); 
}
else if (st1.nextToken() == "Queen")
{
    String Queen= "12";
    i = Integer.parseInt(Queen);
}
else if (st2.nextToken() == "Queen")
{
    String Queen= "12";
    z = Integer.parseInt(Queen);
}
else if (st1.nextToken() == "Jack")
{
    String Jack = "11";
    i = Integer.parseInt(Jack);
}
else if (st2.nextToken() == "Jack")
{
    String Jack = "11";
    z = Integer.parseInt(Jack); 
    break;
}
else
{
    i = Integer.parseInt(st1.nextToken());  
    z = Integer.parseInt(st2.nextToken());
}
if (i > z)