CBSE Class 12 Informatics Practices Programming Fundamentals Assignment

PROGRAMMING FUNDAMENTALS

Questions and Answers

Q1. Name any two Object Oriented Programming languages?

Ans. C++ and Java

Q2. Why is java called a platform independent language?

Ans Java program can be easily moved from one computer system to another, anywhere anytime. Changes and upgrade in operating system, processors and system resources will not force any change in the Java program. Hence it is called a platform independent language.

Q3. Elaborate the java Compilation process. 

Ans. The source program is first converted into a byte code using a java compiler. This byte code is machine independent i.e. same for all the machines. Later the byte code is executed on the machine using an interpreter.

Q4. Why do we write a comment in a program? What are the two ways of writing comment in a java Program?

Ans. Comments are added to a program for the following purposes:-

1. Make the more readable and understandable

2. For future references we can add comments in a Java program in the following ways:

    i) Adding // before the line which is to be commented. This can be used only for single line comments.

    ii) using a pair of /* and */ for multi-line comments.

Q5. What is a syntax error in context of a program? Give an example.

Ans. Error in the way of writing a statement in a program, results in a syntax error. For e.g. for ( i=0, i<=100. i++), will result in a syntax because the program has written comma instead of a semi comma in the for loop.

Q6. What is RAD programming? Why is program development in java using Netbeans IDE is RAD?

Ans. RAD stands for Rapid Application Development. A programming style which aims at building programs fastly through the use of tools and wizards is called RAD. Program development using Netbeans IDE is RAD as it

• provides GUI

• Provides online help and suggestions during typing of the program (using ctrl+ Spacebar key)

• Error alerts while typing of the program.

Q7. What is IDE? Name two IDE for Programming in java.

Ans. A programming environment, where all the tools required for programming are available under one roof is called IDE. Two IDE for Java are Netbeans and BlueJ

Q8. Name any two type of Tokens available in Java.

Ans. Keyword, Identifier, Literal, Punctuators ad Operators.

Q9. What are primitive data types? Name the various primitive data type available in Java.

Ans. Data types that are directly available with java are called primitive data type. Various primitive data types available in java are byte, short, int, long, float, double, char and boolean.

Q10. What are Reference data types?

Ans. Data types created by the programmer using the primitive data type are called reference data type e.g. Classes, interfaces etc.

Please refer to attached file for CBSE Class 12 Informatics Practices Programming Fundamentals Assignment