Solution :
1.Idea Class Diagram cas304 By + Memory Leak
1.Idea Class Diagram cas304 By + Memory Leak
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2.
vehicle k sath car & bus ka " IS-A" ka relation hai .....
car is a vehicle.... bus is a vehicle....
unfilled diamond ka symbol ni ayega..... uska matlb hai vehicle contains car & bus.....
jab k vehicle contain tou nhi karti......
yahan arrow ayegaa.... car or bus se vehicle ki taraf point kary ga
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