Association in Java

[black-ops]

I have been trying to get my head around how an Association would work between two classes in Java. Could someone kindly explain how it works,
Is it just

Public Class mySubClass{

}

public Class myMainClass extends mySubClass{

}

or is that just a pure inheritance?

 

[Randomface74]

public class Member
{
}

public class Meeting
{
}

public class Attendance // association class
{
private Meeting meeting;
private Member member;
...
}

9 times out of 10 you could probably structure this better using seperate class files.

 

[black-ops]

public class Member
{
}

public class Meeting
{
}

public class Attendance // association class
{
private Meeting meeting;
private Member member;
...
}

9 times out of 10 you could probably structure this better using seperate class files.

I take it in order to use external classes I would use something like this inside each class?

public void changeValue(newValue){
this.value = newValue;
}

Correct?