Question

I have to store data from a UDP packet such as name, address and port number. I originally used 3 array lists to do this but this seems like too much trouble.
Instead I thought of using Hashmap for the key – value line up it is but this would mean that the names would be contained in their own hash map or array list.

Is there a good, efficient way of storing all this data in the one collection/container/array?

Answer 1

Try to use something like this :

public class UdpData {
private String name;
private String address;
private int port;
public UdpData(String name, String address, int port) {
    super();
    this.name = name;
    this.address = address;
    this.port = port;
}
public String getName() {
    return name;
}
public void setName(String name) {
    this.name = name;
}
public String getAddress() {
    return address;
}
public void setAddress(String address) {
    this.address = address;
}
public int getPort() {
    return port;
}
public void setPort(int port) {
    this.port = port;
}
}

And then use :

List<UdpData> AllData;