找最大数和第二大数

public class MainActivity extends AppCompatActivity {
    int[] arr2 = new int[]{2, 3,4 , 5, 8, 9, 10};

    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        System.out.println(max(arr2));
        System.out.println(second(arr2));
    }

    public int max(int[] array) {
        int max = array[0];
        for (int i = 0; i < array.length; i++) {
            if (array[i] > max) {
                max = array[i];
            }
        }
        return max;
    }

    public int second(int[] array) {
        int second = array[0];
        for (int i = 0; i < array.length; i++) {
            if (array[i] > second && array[i] < max(array)) {
                second = array[i];
            }
        }
        return second;
    }
}

 

转载于:https://www.cnblogs.com/Ocean123123/p/11038569.html