Java数组删除困惑？

Question

我一直在尝试创建一个程序，该程序将从用户想要的数组中删除一个元素，并让数组在循环中删除。我遇到的问题是删除元素后删除多余的数组元素。我已经这样做了大约3个小时，但一无所获。请帮我。谢谢。

这就是我的意思:

The array list: 10 20 30 40 50

Which number should be removed for the list?
Number to delete: 20
10 30 40 50 
Try again? y/n

Which number should be removed for the list?
Number to delete: 30
10 40 **50 50**

Try again? y/n

这是我所拥有的:

import java.util.Scanner;


public class DeleteElements {

    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        int del = 0;

        int intArray[] = {10, 20, 30, 40, 50};

        System.out.println("\n---- Part 3 of the Homework----");

        char yN;
        boolean yes = true;

        for (int i = 0; i < intArray.length; i++) {
            System.out.print(intArray[i] + " ");
        }

        do {
            System.out.print("\nWhich number should be removed for the list? ");
            del = input.nextInt();
            System.out.println("Number to delete: " + del);

            for (int i = 0; i < intArray.length; i++) {
                if (intArray[i] == del) {
                    if (i == 0) {
                        for (int b = i; b < intArray.length - 1; b++) {
                            intArray[b] = intArray[b + 1];
                            System.out.print(intArray[b] + " ");
                        }
                    }
                    if (i > 0 && i <= intArray[i]) {
                        for (int c = 0; c < i; c++) {
                            System.out.print(intArray[c] + " ");
                        }
                        for (int a = i; a < intArray.length - 1; a++) {
                            intArray[a] = intArray[a + 1];
                            System.out.print(intArray[a] + " ");
                        }
                    }
                }
            }
            System.out.println("\nDelete again? y/n");
            input.nextLine();
            yN = input.nextLine().charAt(0);
            if (yN == 'y') {
                yes = true;
            } else if (yN == 'n') {
                yes = false;
            }
        } while (yes != false);
    }
}

Answer 1

问题出在打印结果的代码中:它总是假设只有一项被“删除”。当然，您无法真正从数组中删除项目 - 您所能做的就是假装最后一个 K 元素不存在，并且不打印它们。

您需要不断计数才能知道何时停止 - 换句话说，而不是

for (int a = i; a < intArray.length - 1; a++ )

你应该写

for (int a = i; a < intArray.length - removedCount; a++ )

从零开始removedCount，并在每次删除元素时递增它。