Download GTU B.Tech 2020 Winter 7th Sem 2170309 Introduction To Java And Visual C++ Question Paper

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Subject Name: Introduction to JAVA & Visual C++

Time: 10:30 AM TO 12:30 PM

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Instructions:

1. Attempt any FOUR questions out of EIGHT questions.
2. Make suitable assumptions wherever necessary.
3. Figures to the right indicate full marks.

Q.1

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1. Define following terms:
   1. Coercion
   2. Polymorphism
   3. Applet

   MARKS 03

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2. Define constructor with its properties. Can they be overloaded?

   MARKS 04

3. Explain in detail the life cycle of a Thread.

   MARKS 07

Q.2

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1. Explain the try-catch statement with one example.

   MARKS 03

2. Explain command-line interface.

   MARKS 04

3. Write an application that executes following mentioned threads.
   1. Displays "HELLO" every 2000 milliseconds

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   2. Displays "WORLD" every 4000 milliseconds.
   Create the threads by implementing the Runnable interface.

   MARKS 07

Q.3

1. Explain the basic structure of C++ program.

   MARKS 03

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2. Explain briefly virtual functions in Visual C++

   MARKS 04

3. Write a program for drawing a Circle in Visual C++.

   MARKS 07

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Q.4

1. Explain briefly Inheritance and Write an example of inheritance.

   MARKS 03

2. Explain briefly nested classes in Visual C++.

   MARKS 04

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3. Write a program for drawing following shapes in Visual C++.
   1. Rectangle
   2. Square

   MARKS 07

Q.5

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1. Define below listed terms:
   1. Type Casting
   2. IDE
   3. API

   MARKS 03

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2. Determine output of following code:

   
   public static void P()
   { int i=0,-s=1; for(i=1; 1<=3; i++); s=stit+; System.out.println(s+" "+1);
   } 

   MARKS 04

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3. Explain in detail package and interface with appropriate example.

   MARKS 07

Q.6

1. Define access specifiers. Draw a table showing all the access specifiers and their accessibility in the class, package, subclasses and other packages.

   MARKS 03

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2. 
   { int a=5+2%2/7%3; double b=10/100*25; double c=25*10/100; double d=25%*.1; Systemout.print(a); Systemout.println(b); Systemout.println(c); Systemout.print(d);
   } 

   MARKS 04

3. Enlist the uses of mentioned below of Thread class with example:
   1. wait()

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   2. notify()
   3. sleep()

   MARKS 07

Q.7

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1. Explain abstract classes and abstract methods with appropriate examples.

   MARKS 03

2. Develop a program in JAVA to convert following:
   1. Centimeter to Meter
   2. Kilogram to Grams

   MARKS 04

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3. Develop a code for a BMI (Body Mass Index) calculator in JAVA.

   MARKS 07

Q.8

1. Differentiate Pure and Impure Functions.

   MARKS 03

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2. Write a program to convert Fahrenheit to Celsius in JAVA.

   MARKS 04

3. Design a JAVA code for a simple calculator.

   MARKS 07

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