thread safe map for java

Question

i need a thread safe map, i have something like this: (i\'m very new to java)

 public static class Manager
        {
        static 
        {
//something wr         


        

Answer 1

Your code should look like this, ignoring imports, et al.

public class Manager
{
    Map list = java.util.Collections.synchronizedMap(new HashMap());

    public void AddClient(Client client)
    {
        // thread safe add client to the list
    }

    public void RemoveClient(Client client)
    {
        // thread safe remove client to the list
    }
}

That said, beware that this is not as thread safe as you might hope. As others have mentioned, you probably want to use the Java Concurrent Collections.