7. oop2 - (6) MyUtilsDemo

package oop2;
 
import java.text.DecimalFormat;
 
public class MyUtils {
 
    public static String numberWithComma(long number) {
        DecimalFormat df = new DecimalFormat("#,###");
        return df.format(number);
    }
}

 

package oop2;
 
public class MyUtilsDemo {
    public static void main(String[] args) {
        
        String text = MyUtils.numberWithComma(1000000);
        System.out.println(text);
        
    }    
}