java - 从数组中删除两个最大的元素

Question

我可以填充我的数组，并找到两个最大的数字。但是，我不能删除它。你们可以帮助我吗？

  int n = sc.nextInt();
  int [] myArray = new int[n];
  int first = 0;
  int second = 0;
       for(int i = 0; i < myArray.length; i++) {
    int num = sc.nextInt();`
       if (num > first) {
         second = first;
         first = num;
    } else if(num > second) 
      {
      second = num;
      }
     }

   System.out.println("The largest  " + first+ "The second largest  " + second);

Answer 1

如果你使用的是 Java 8，你可以对你的数组进行排序，然后你可以循环抛出你的数组并将它的值设置为另一个避免最后两个整数，例如:

//Your array
Integer[] array = {8, 99, 6, 336, 2};

//sort your array this can give your [2, 6, 8, 99, 336]
Arrays.sort(array);

//create a new array with the length = array - 2 if the length of array < 2 then 0
Integer[] array2 = new Integer[array.length > 2 ? array.length - 2 : 0];

//copy your array into the array2 avoiding the 2 last
System.arraycopy(array, 0, array2, 0, array.length > 2 ? array.length - 2 : 0);

//print your array, this will print [2, 6, 8]
System.out.println(Arrays.toString(array2));