out.append("Line " + (j+1) + ": ");
System.out.print("Line " + (j+1) + ":");
for (int i = 0; i < lotto.length;i++){
lotto[i] = r.nextInt(45)+1;
out.append(lotto[i] + " ");
System.out.print(lotto[i] + " ");
}
现在打印如下
1号线:41 7 38 20 38 39 2号线:12 35 5 27 4 33 3号线:9 3 10 15 35 2