java - 如何调试未按预期工作的 switch 语句？

Question

我必须在同一个数组中分隔 0 和 1。我写了逻辑，但没有得到正确的输出。你能检查代码并让我知道错误是什么吗？

package Segregate;

public class Segregate {

    public void segregate0and1(int arr[], int arr_size){

        int i=0;
        int j=arr_size-1;
        while(j>=i){
            switch(arr[i]){
            case 0:{
                i++;
            }
            case 1: {


                int temp = arr[i];
                arr[i] = arr[j];
                arr[j] = temp;
                j--;

         }
            }

        }

    }

    public static void main(String[] args) {
        Segregate seg = new Segregate ();
        int arr[] = {0, 1, 0, 1, 0,0,1};
        int arr_size = arr.length;
        seg.segregate0and1(arr, arr_size);

        System.out.print("Array after segregation is ");
        for (int k = 0; k < arr_size; k++){
            System.out.print(arr[k] + " ");
        }
    }

}

Answer 1

我建议对数组进行排序而不是使代码和逻辑复杂化

  public static void main(String[] args) {
    int arr[] = { 0, 1, 0, 1, 0, 0, 1 };
    Arrays.sort(arr);
    System.out.println(Arrays.toString(arr));

    }