java - 如何将数组中的负数更改为其索引槽

Question

我试图将 WholeNumbers 数组中的负数更改为它们的槽/索引号，然后打印出该数组。我还必须使用 while 循环。这是我到目前为止所得到的，但现在我陷入困境。我复制数组的方向正确吗？我该如何继续，“change[counter]”等于“counter”是否正确？还是我的想法错了？当我运行时出现错误

public class NegativeNumber {
public static void main(String[] args) {

    int[] wholeNumbers = {1, 4, 5, -2, -4, 6, 10, 3, -2};
    int counter = 0;
    int negativeCounter = 0;
    int sum = 0;

 while(counter < wholeNumbers.length) {
   if(wholeNumbers[counter] < 0)
   {
     sum += wholeNumbers[counter];
     negativeCounter++;
   }
  counter++;

  }
System.out.println("Negative numbers: "+negativeCounter);


int[] change = Arrays.copyOf(wholeNumbers, wholeNumbers.length);

while(counter < change.length) { //get error
  if(change[counter] < 0){
     change[counter]=counter;
System.out.println(change[counter]);
  }
  }
}
}
}

Answer 1

public static void main(String[] args) {

    int[] wholeNumbers = {1, 4, 5, -2, -4, 6, 10, 3, -2};

    int negativeCount;

    for(int i = 0; i < wholeNumbers.length; i++) {
        if(wholeNumbers[i] < 0) {
            negativeCount++;

            wholeNumbers[i] = i;
        }
    }
}

带有while

public static void main(String[] args) {

    int[] wholeNumbers = {1, 4, 5, -2, -4, 6, 10, 3, -2};

    int negativeCount;

    int idx = 0;

    while(idx < wholeNumbers.length) {
        if(wholeNumbers[idx] < 0) {
            negativeCount++;

            wholeNumbers[idx] = idx;
        }

        idx++;
    }
}