How can I display the deleting node from arraylist?

Question

public static void deleteEmployee(int empId) {
        Iterator<Employee> iterator = list1.iterator();
        while (iterator.hasNext()) {
            if (iterator.next().getEmpid() == empId) {
                System.out.println("The name of whose details deleted is  ::");
                iterator.remove();
            }
        }

    }

Here I am trying to delete node from arraylist based on employee id. But before deleting I want to show the details of particular employee. How can I do that?

iterator.next() gives you the employee node. Get all other details from it as you get employee Id like iterator.next().getEmpid() — rags
– rags, Commented Sep 13, 2013 at 6:56
Not all collections support remove but it would be fine with arraylist — Anirudha
– Anirudha, Commented Sep 13, 2013 at 6:59
if I do so then every time it will point to next to next element — ASHISH
– ASHISH, Commented Sep 13, 2013 at 7:37

Ondrej Bozek · Accepted Answer · 2013-09-13 06:56:18Z

4

What about storing emloyee in temporary variable?

public static void deleteEmployee(int empId) {
    Iterator<Employee> iterator = list1.iterator();
    while (iterator.hasNext()) {
        Employee employee = iterator.next();
        if (employee.getEmpid() == empId) {
            System.out.println("The name of whose details deleted is  ::" + employee.getName()); // or whatever property in employee
            iterator.remove();
        }
    }

}

answered Sep 13, 2013 at 6:56

Ondrej Bozek

11.7k7 gold badges58 silver badges71 bronze badges

Sign up to request clarification or add additional context in comments.

2 Comments

ASHISH Over a year ago

ya, its working fine. But can I use for each loop instead of Iterator?

Ondrej Bozek Over a year ago

No, if you would use for-each loop and modified iterated list it would throw ConcurrentModificationException. You would have to iterate through whole list and store values which you want to remove. Then in another loop iterate through these stored values and remove them from original list - much more complicated solution.

user1907906 · Accepted Answer · 2013-09-13 06:55:29Z

0

This has nothing to do with Iterator or List.

Look at Employee: does it it have a toString() implemenation that prints the details? If not, does it have getters for its properties? Use these with System.out.println.

answered Sep 13, 2013 at 6:55

user1907906

Collectives™ on Stack Overflow

How can I display the deleting node from arraylist?

2 Answers 2

2 Comments

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

2 Comments

Comments

Your Answer

Sign up or log in

Post as a guest

Related