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0502 Object Oriented Programming Through Java Set1


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0502 Object Oriented Programming Through Java Set1

  1. 1. Code No: RA210502 RA II B.Tech II Semester Supplimentary Examinations, Apr/May 2008 OBJECT ORIENTED PROGRAMMING THROUGH JAVA ( Common to Electronics & Communication Engineering, Computer Science & Engineering and Information Technology) Time: 3 hours Max Marks: 80 Answer any FIVE Questions All Questions carry equal marks 1. Write a program for concatenating two strings. [16] 2. (a) Name any four Java packages. Give any two classes of a package. (b) What is data abstraction? What is information hiding? Contrast them. (c) Contrast: inheritance Vs. composition. [6+5+5] 3. (a) De ne virtual function and give advantages of it. (b) Explain about static and dynamic binding with examples. [8+8] 4. Describe about various components in Swing. [16] 5. A program throws an exception and the appropriate exception handler begins exe- cution, and this exception handler in turns throws the same exception. Is this above approach creating an in nite recursion? Justify your answer with an example. [16] 6. De ne a Thread? Explain the hierarchy of Thread class? Discuss about the various methods in thread class with examples. [16] 7. Write a program to handle HTTP get request? [16] 8. (a) What is TCP/IP? What is the di erence between TCP/IP and UDP/IP? (b) What is socket? Which socket is used for client and server in TCP? (c) How does a client can create a connection with a server? How does a server can create a connection with a client? [5+5+6] 1 of 1