Can you format the question in if-statements or other forms using this code segment?

public void setquiz( int quiz, int grade )
{
switch( quiz )
{
case 1: // if quiz == 1
grade1 = grade; //where was grade1 declared?
break; // otherwise execution will continue through the next case block
case 2: // if quiz == 2
grade2 = grade;
break;
}
}