UML聚合和组合

DAY

聚合

1. 
   
2. public class Mouse{
   
3. }
   
4. public class Monitor{
   
5. }
   
6. public class Compute{
   
7.     private Mouse mouse;
   
8.     private Monitor monitor;
   
9. }
   

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组合

1. 
   
2. public class Mouse{
   
3. }
   
4. public class Monitor{
   
5. }
   
6. public class Compute{
   
7.     private Mouse mouse = new Mouse();
   
8.     private Monitor monitor = new Monitor();
   
9. }
   

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总结：可分离聚合，不可分离组合