[java] while문 구구단

package mypackage;
 
public class WhileExample1 {
    public static void main(String[] args) {
        MyComparison mycomp = new MyComparison();
        mycomp.displayGugudan();
    }
}
 
class MyComparison{
    void displayGugudan(){
        int dan = 1; 
        int su = 1;
        while(dan <= 9){
            while(su <= 9){
                System.out.println(dan+"단 : "+dan+"*"+su+"="+(dan * su));
                su++;
            }
            dan++; su = 1;
            System.out.println();
        }
    }
}