java - 删除每 n 个员工是行不通的

Question

import java.util.LinkedList;
import java.util.List;
import java.util.ListIterator;

public class vijftienpunt1 {

public static void downsize(LinkedList<String> employeeNames, int n) {
    for (int i = 0; i < employeeNames.size(); i++) {
        if(i%n==0) {
            employeeNames.remove(i);
        }
    }
}

public static void main(String[] args) {
    LinkedList<String> employeeNamess = new LinkedList<String>();

    employeeNamess.add("Ab");

    employeeNamess.add("Yo");
    employeeNamess.add("Ik");
    employeeNamess.add("Jij");

    System.out.println(employeeNamess);
    downsize(employeeNamess, 2);
    System.out.println(employeeNamess);
}
}

当我运行这个不起作用时，它会删除其他第 n 个元素，我该如何解决这个问题。我已经尝试了更多操作，但仍然不起作用

Answer 1

每当您想从列表中删除元素时，请使用迭代器。

尝试下面的代码:

public static void downsize(LinkedList<String> employeeNames, int n) {
    int i=1;
    Iterator<String> iter=employeeNames.iterator();
    while(iter.hasNext()){
        iter.next();
        if(i%n==0) {
            iter.remove();
        }
        i++;
    }
}