public class RandomCharacters2 implements Runnable { private char c; private MyOutput o; private int count=0,i=0; public RandomCharacters2(char c, MyOutput o) { this.c=c; this.o=o; } public void run() { while(i<100) { i++; o.output(c); count++; if(count==50) { o.output('\n'); count=0; } } } }