数组的下标是从0开始的,所以循环是从scores.length -1;开始的。
public static void main(String[] args) { int scores[] = {89, -23, 64, 91, 119, 52, 73}; HelloWorld helloWorld = new HelloWorld(); helloWorld.chengji(scores); } //定义方法完成成绩排序并输出前三名的功能 public void chengji(int[] scores) { Arrays.sort(scores); int num = 0; for (int i = scores.length -1; i >=0; i--) { if (scores[i] < 0 || scores[i] > 100) { continue; } num++; if (num>3){ break; } System.out.println(scores[i]); } }