sir answer three questions asap

2. Answer three questions below: CO1 a) What is object serialization? Describe some real-life example of usage. CO1 b) Suppose you defined the following two methods in the same java class. Does your program compile? Explain your decision. public int doSomeThing(int ( y ) ) public string doSomeThing(int ( mathrm{x} ) ) CO1 c) Observe the statement: 'Multiple inheritance is not supported through class in java but it is possible through interface.' - Explain with appropriate code. ( mathrm{CO} 2 ) d) What do you understand by "Design Patterns"? Name three of them. Explain what "Anti Pattern" is. CO4 e) Describe two key reasons to use HashMap instead of HashTable.

2. Answer three questions below: CO1 a) What is object serialization? Describe some real-life example of usage. CO1 b) Suppose you defined the following two methods in the same java class. Does your program compile? Explain your decision. publicintdoSomeThing(inty)publicStringdoSomeThing(intx) CO1 c) Observe the statement: "Multiple inheritance is not supported through class in java but it is possible through interface. ' - Explain with appropriate code. CO2 d) What do you understand by "Design Patterns"? Name three of them. Explain what "Anti Pattern" is. CO4 e) Describe two key reasons to use HashMap instead of HashTable