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ICSE Class X Board Exam 2010 : Computer Applications

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ICSE COMPUTER APPLICATIONS PAPER 2010 SECTION A Question 1. a) Define the term bytecode. b) What do you mean by type conversion? How is implicit conversion different from explicit conversion? c) Name 2 jump statements and their use. d) What is an exception? Name 2 exception handling blocks. e) Write two advantages of using functions in a Java program. [ 2 x 5 = 10] Question 2. a) State the purpose and return data type of the following String functions :i) indexOf() ii) compareTo( ) b) What is the result stored in x, after evaluating the following expression int x=5; x=x++ * 2 + 3 * --x c) Differentiate between static and non-static data members. d) Write the difference between length and .length() function. e) Differentiate between private and protected visibility modifiers. [ 2 x 5 = 10] Question 3. a) What do you understand by the term data abstraction? Explain with the help of an example. [2] b) What will be the output of the following code? i) int m=2; int n=15; for(int i=1;i<=15;i++); m++; --n; System.out.println("m="+m); System.out.println("n="+n); [2] ii) char x='A'; int m; m=(x=='a')?'A':'a'; 1

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