清华大学：JAVA教学课件：5-10

class GeneralFunction{
public static int addUp(int x,int y){
return x+y;
}
}
public class UseGeneral{
public static void main(String args[]){
int a = 9;
int b = 10;
int c = GeneralFunction.addUp(a，b);
System.out.println("addUp() gives" + c);
}
}